Symbiosis in lichens is so well-balanced that lichens have been considered to be relatively self-contained miniature ecosystems in and of themselves. It is thought that lichens may be even more complex symbiotic systems that include non-photosynthetic bacterial communities performing other functions as partners in a holobiont.
Many lichens are very sensitive to environmental disturbances and can be used to cheaply assess air pollution, ozone depletion, and metal contamination. Lichens have been used in making dyes, perfumes, and in traditional medicines. A few lichen species are eaten by insects or larger animals, such as reindeer. Lichens are widely used as environmental indicators or bio-indicators. When air is very badly polluted with sulphur dioxide, there may be no lichens present; only some green algae can tolerate those conditions. If the air is clean, then shrubby, hairy and leafy lichens become abundant. A few lichen species can tolerate fairly high levels of pollution, and are commonly found in urban areas, on pavements, walls and tree bark. The most sensitive lichens are shrubby and leafy, while the most tolerant lichens are all crusty in appearance. Since industrialisation, many of the shrubby and leafy lichens such as Ramalina, Usnea and Lobaria species have very limited ranges, often being confined to the areas which have the cleanest air.


February is the second month of the year in the Julian and Gregorian calendars. The month has 28 days in common years or 29 in leap years, with the 29th day being called the leap day. It is the first of five months not to have 31 days (the other four being April, June, September, and November) and the only one to have fewer than 30 days.
February is the third and last month of meteorological winter in the Northern Hemisphere. In the Southern Hemisphere, February is the third and last month of meteorological summer (being the seasonal equivalent of what is August in the Northern Hemisphere).


Having only 28 days in common years, February is the only month of the year that can pass without a single full moon. Using Coordinated Universal Time as the basis for determining the date and time of a full moon, this last happened in 2018 and will next happen in 2037. The same is true regarding a new moon: again using Coordinated Universal Time as the basis, this last happened in 2014 and will next happen in 2033.
February is also the only month of the calendar that, at intervals alternating between one of six years and two of eleven years, has exactly four full 7-day weeks. In countries that start their week on a Monday, it occurs as part of a common year starting on Friday, in which February 1st is a Monday and the 28th is a Sunday; the most recent occurrence was 2021, and the next one will be 2027. In countries that start their week on a Sunday, it occurs in a common year starting on Thursday; the most recent occurrence was 2015 and the next occurrence will be 2026. The pattern is broken by a skipped leap year, but no leap year has been skipped since 1900 and no others will be skipped until 2100.


"February" is pronounced in several different ways. The beginning of the word is commonly pronounced either as /ˈfɛbju-/ (listen) FEB-yoo- or /ˈfɛbru-/ FEB-roo-; many people drop the first "r", replacing it with /j/, as if it were spelled "Febuary". This comes about by analogy with "January" (/ˈdʒæn.ju-/ (listen)), as well as by a dissimilation effect whereby having two "r"s close to each other causes one to change. The ending of the word is pronounced /-ɛri/ -err-ee in the US and /-əri/ -ər-ee in the UK.


In Catholic tradition, February is the Month of the Purification of the Blessed Virgin Mary.
American Heart Month (United States)
Black History Month (United States, Canada)
LGBT+ History Month (United Kingdom)
National Bird-Feeding Month (United States)
National Children's Dental Health Month (United States)
Season for Nonviolence: January 30 – April 4 (International observance)
Turner Syndrome Awareness Month (United States)


February meteor showers include the Alpha Centaurids (appearing in early February), the March Virginids (lasting from February 14 to April 25, peaking around March 20), the Delta Cancrids (appearing December 14 to February 14, peaking on January 17), the Omicron Centaurids (late January through February, peaking in mid-February), Theta Centaurids (January 23 – March 12, only visible in the southern hemisphere), Eta Virginids (February 24 and March 27, peaking around March 18), and Pi Virginids (February 13 and April 8, peaking between March 3 and March 9).


Derived from the Latin word, the Roman month Februarius was named after the Latin term februum, which means "purification", via the purification ritual Februa held on February 15 (full moon) in the old lunar Roman calendar. January and February were the last two months to be added to the Roman calendar, since the Romans originally considered winter a monthless period. They were added by Numa Pompilius about 713 BC.  February remained the last month of the calendar year until the time of the decemvirs (c. 450 BC), when it became the second month. At certain times February was truncated to 23 or 24 days, and a 27-day intercalary month, Intercalaris, was occasionally inserted immediately after February to realign the year with the seasons.
February observances in Ancient Rome included Amburbium (precise date unknown), Sementivae (February 2), Februa (February 13–15), Lupercalia (February 13–15), Parentalia (February 13–22), Quirinalia (February 17), Feralia (February 21), Caristia (February 22), Terminalia (February 23), Regifugium (February 24), and Agonium Martiale (February 27). These days do not correspond to the modern Gregorian calendar.
Under the reforms that instituted the Julian calendar, Intercalaris was abolished, leap years occurred regularly every fourth year, and in leap years February gained a 29th day. Thereafter, it remained the second month of the calendar year, meaning the order that months are displayed (January, February, March, ..., December) within a year-at-a-glance calendar. Even during the Middle Ages, when the numbered Anno Domini year began on March 25 or December 25, the second month was February whenever all twelve months were displayed in order. The Gregorian calendar reforms made slight changes to the system for determining which years were leap years, but also contained a 29-day February.
Historical names for February include the Old English terms Solmonath (mud month) and Kale-monath (named for cabbage) as well as Charlemagne's designation Hornung. In Finnish, the month is called helmikuu, meaning "month of the pearl"; when snow melts on tree branches, it forms droplets, and as these freeze again, they are like pearls of ice. In Polish and Ukrainian, respectively, the month is called luty or лютий (lyutiy), meaning the month of ice or hard frost. In Macedonian the month is sechko (сечко), meaning month of cutting (wood). In Czech, it is called únor, meaning month of submerging (of river ice).
In Slovene, February is traditionally called svečan, related to icicles or Candlemas. This name originates from sičan, written as svičan in the New Carniolan Almanac from 1775 and changed to its final form by Franc Metelko in his New Almanac from 1824. The name was also spelled sečan, meaning "the month of cutting down of trees".
In 1848, a proposal was put forward in Kmetijske in rokodelske novice by the Slovene Society of Ljubljana to call this month talnik (related to ice melting), but it did not stick. The idea was proposed by a priest, Blaž Potočnik. Another name of February in Slovene was vesnar, after the mythological character Vesna.


February’s full moon is called Snow Moon
Its birth flowers are the violet (Viola), the common primrose (Primula vulgaris), and the Iris.
Its birthstone is the amethyst. It symbolizes piety, humility, spiritual wisdom, and sincerity.
The zodiac signs for the month of February were Aquarius (until February 20, 2020) and Pisces (February 20, 2020 onwards).
Its animal is the tiger, the third of the 12-year cycle of animals in the Chinese Zodiac.


In December 2019, BirdLife International asked Taiwan's then named Chinese Wild Bird Federation (CWBF), to address the following issues or risk removal from its partnership program:
The organization's Chinese name (Chinese: 中華民國野鳥學會 lit. 'Republic of China Wild Bird Federation') poses an operational risk for BirdLife International and should be changed.
CWBF was to sign a document formally committing to not promote or advocate for the legitimacy of the Republic of China (Taiwan).
BirdLife International would no longer participate in or allow its logo to be associated with any event related to or funded, in part or in whole, by the Taiwanese government or its agencies.
BirdLife International would no longer allow its name or logo to be used in any document where the Taiwanese flag, symbols, or emblems were displayed.
However, BirdLife International stated that even if CWBF were to address all of its demands, it may still be removed from BirdLife International's partnership program. On 7 September 2020, before CWBF had the opportunity to discuss BirdLife International's demands in its General Assembly meeting, BirdLife International Global Council voted to remove CWBF from its partnership program.
BirdLife International CEO Patricia Zurita subsequently issued what Reuters described as a "gag order", directing her staff to not comment publicly on the "sadly public statement" from CWBF. "If you receive any queries regarding this matter, please DO NOT offer comment and instead refer the matter to me directly," Zurita wrote.
Correspondence between CWBF and BirdLife International was released by CWBF on 19 September 2020 to demonstrate that CWBF had been negotiating in good faith prior to its removal, and was willing to discuss the name change.


BirdLife International was founded in 1922 as the International Council for Bird Protection by American ornithologists T. Gilbert Pearson and Jean Theodore Delacour. The group was renamed International Committee for Bird Preservation in 1928, International Council for Bird Preservation in 1960, and BirdLife International in 1993.


BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding important sites for birds, maintaining and restoring key bird habitats, and empowering conservationists worldwide.
It has a membership of more than 2.5 million people across 116 country partner organizations, including the Royal Society for the Protection of Birds, the Wild Bird Society of Japan, the National Audubon Society and American Bird Conservancy.
BirdLife International has identified 13,000 Important Bird and Biodiversity Areas and is the official International Union for Conservation of Nature’s Red List authority for birds. As of 2015, BirdLife International has established that 1,375 bird species (13% of the total) are threatened with extinction (critically endangered, endangered or vulnerable).
BirdLife International publishes a quarterly magazine, BirdLife: The Magazine, which contains recent news and authoritative articles about birds and their conservation.


In 2008, the English name of Wild Bird Federation Taiwan was renamed to Chinese Wild Bird Federation in order to comply with BirdLife International's demand, stemming from People's Republic of China's pressure. Following the organization's removal from BirdLife International in 2020, the English name was changed to Taiwan Wild Bird Federation (TWBF).


Dom Mariani – vocals, guitar (1983–1987, 2003–2009, 2013-present)
Richard Lane – vocals, guitar, keyboards, harmonica (1983–1987, 2003–2009) (died May 2020)
Gary Chambers – drums (1983–1986)
Julian Matthews – bass guitar, vocals (1984–1987, 2003–2009, 2013-present)
David Shaw – drums, percussion, vocals (1986–1987, 2003–2009, 2013-present)
John Shuttleworth – bass guitar (1984)
Ashley Naylor; guitar, vocals (2013–present)
Davey Lane; guitar, vocals, keys, harmonica (2017–present)


The Stems are a garage punk band formed in Perth, Western Australia in late 1983. They were founded by Dom Mariani in late 1983. The Stems are heavily influenced by 1960s garage rock and 1970s power pop. The band initially broke up in August 1987 and reformed in 2003, releasing a new album in 2007. Although the group disbanded in October 2009, as of 2013 The Stems are an ongoing live concern.


The West Australian Music Industry Awards are annual awards celebrating achievements for Western Australian music. They commenced in 1985.


Western Asia is primarily arid and semi-arid, and can be subject to drought, but it also contains vast expanses of forest and fertile valleys. The region consists of grasslands, rangelands, deserts, and mountains. Water shortages are a problem in many parts of West Asia, with rapidly growing populations increasing demands for water, while salinization and pollution threaten water supplies. Major rivers, including the Tigris and Euphrates, provide sources for irrigation water to support agriculture.
There are two wind phenomena in Western Asia: the sharqi and the shamal. The sharqi (or sharki) is a wind that comes from the south and southeast. It is seasonal, lasting from April to early June, and comes again between late September and November. The winds are dry and dusty, with occasional gusts up to 80 kilometres per hour (50 miles per hour) and often kick up violent sand and dust storms that can carry sand a few thousand meters high, and can close down airports for short periods of time. These winds can last for a full day at the beginning and end of the season, and for several days during the middle of the season. The shamal is a summer northwesterly wind blowing over Iraq and the Persian Gulf states (including Saudi Arabia and Kuwait), often strong during the day, but decreasing at night. This weather effect occurs anywhere from once to several times a year.


The region is surrounded by eight major seas; the Aegean Sea, the Black Sea, the Caspian Sea, the Persian Gulf, the Arabian Sea, the Gulf of Aden, the Red Sea, and the Mediterranean Sea.
To the northwest and north, the region is delimited from Europe by the Turkish Straits and drainage divide of the Greater Caucasus, to the southwest, it is delimited from Africa by the Isthmus of Suez, while to the northeast and east, the region adjoins Central Asia and South Asia. The region is located east of Southern Europe and south of Eastern Europe.
The Dasht-e Kavir and Dasht-e Lut deserts in eastern Iran naturally delimit the region from Balochistan and South Asia.


Several major aquifers provide water to large portions of Western Asia. In Saudi Arabia, two large aquifers of Palaeozoic and Triassic origins are located beneath the Jabal Tuwayq mountains and areas west to the Red Sea. Cretaceous and Eocene-origin aquifers are located beneath large portions of central and eastern Saudi Arabia, including Wasia and Biyadh which contain amounts of both fresh water and saline water. Flood or furrow irrigation, as well as sprinkler methods, are extensively used for irrigation, covering nearly 90,000 km² (35,000 sq mi) across Western Asia for agriculture. Also, the Tigris and Euphrates rivers contribute very well.


Western Asia, West Asia, or Southwest Asia, is the westernmost subregion of the larger geographical region of Asia, as defined by some academics, UN bodies and other institutions. It is almost entirely a part of the Middle East, and includes Anatolia, the Arabian Peninsula, Iran, Mesopotamia, the Levant, the island of Cyprus, the Sinai Peninsula, and partly the Caucasus Region (Transcaucasia). The region is considered to be separated from Africa by the Isthmus of Suez in Egypt, and separated from Europe by the waterways of the Turkish Straits and the watershed of the Greater Caucasus. Central Asia lies to its northeast, while South Asia lies to its east. Eight seas surround the region (clockwise): the Aegean Sea, the Black Sea, the Caspian Sea, the Persian Gulf, the Arabian Sea, the Gulf of Aden, the Red Sea, and the Mediterranean Sea.
Western Asia covers an area of 5,994,935 km² (2,314,657 sq mi), with a population of around 313 million. Out of the 21 countries located fully or partly within the region, 13 are a part of the Arab world. The most populous countries in Western Asia are Iran, Turkey, Iraq, Saudi Arabia and Yemen.
In the World Geographical Scheme for Recording Plant Distributions (WGSRPD), Western Asia excludes the Arabian Peninsula.


Three major tectonic plates converge on Western Asia, including the African, Eurasian, and Arabian plates. The boundaries between the tectonic plates make up the Azores-Gibraltar Ridge, extending across North Africa, the Red Sea, and into Iran. The Arabian Plate is moving northward into the Anatolian plate (Turkey) at the East Anatolian Fault, and the boundary between the Aegean and Anatolian plate in eastern Turkey is also seismically active.


The term West Asia is used pragmatically and has no "correct" or generally agreed-upon definition. Its typical definitions overlap substantially, but not entirely, with definitions of the terms Middle East, Eastern Mediterranean, and Near East (which is historically familiar but is widely deprecated today). The National Geographic Style Manual as well as Maddison's The World Economy: Historical Statistics (2003) by the Organisation for Economic Co-operation and Development (OECD) only includes Bahrain, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Palestine (called West Bank and Gaza in the latter), Saudi Arabia, Syria, Turkey, UAE, and Yemen as West Asian countries. In contrast to this definition, the United Nations Industrial Development Organization (UNIDO) in its 2015 yearbook also includes Armenia and Azerbaijan, and excludes Israel (as Other) and Turkey (as Europe).
Unlike the UNIDO, the United Nations Statistics Division (UNSD) excludes Iran from Western Asia and includes Turkey, Georgia, and Cyprus in the region. In the United Nations geopolitical Eastern European Group, Armenia and Georgia are included in Eastern Europe, whereas Cyprus and East Thracian Turkey are in Southern Europe. These three nations are listed in the European category of the United Nations Educational, Scientific, and Cultural Organisation (UNESCO).
National members of Western Asian sports governing bodies are limited to Bahrain, Iran, Iraq, Jordan, Kuwait, Lebanon, Syria, Oman, Palestine, Qatar, Saudi Arabia, United Arab Emirates, and Yemen. The Olympic Council of Asia's multi-sport event West Asian Games are contested by athletes representing these thirteen countries. Among the region's sports organisations are the West Asia Basketball Association, West Asian Billiards and Snooker Federation, West Asian Football Federation, and the West Asian Tennis Federation.


Western Asia contains large areas of mountainous terrain. The Anatolian Plateau is sandwiched between the Pontus Mountains and Taurus Mountains in Turkey. Mount Ararat in Turkey rises to 5,137 meters. The Zagros Mountains are located in Iran, in areas along its border with Iraq. The Central Plateau of Iran is divided into two drainage basins. The northern basin is Dasht-e Kavir (Great Salt Desert), and Dasht-e-Lut is the southern basin.
In Yemen, elevations exceed 3,700 meters in many areas, and highland areas extend north along the Red Sea coast and north into Lebanon. A fault-zone also exists along the Red Sea, with continental rifting creating trough-like topography with areas located well-below sea level. The Dead Sea, located on the border between the West Bank, Israel, and Jordan, is situated at 418 m (1371 ft) below sea level, making it the lowest point on the surface of the Earth.
Rub' al Khali, one of the world's largest sand deserts, spans the southern third of the Arabian Peninsula in Saudi Arabia, parts of Oman, the United Arab Emirates and Yemen. Jebel al Akhdar is a small range of mountains located in northeastern Oman, bordering the Gulf of Oman.


Massachusetts was a center of the movement for independence from Great Britain; colonists in Massachusetts had long uneasy relations with the British monarchy, including open rebellion under the Dominion of New England in the 1680s. Protests against British attempts to tax the colonies after the French and Indian War ended in 1763 led to the Boston Massacre in 1770, and the 1773 Boston Tea Party escalated tensions. In 1774, the Intolerable Acts targeted Massachusetts with punishments for the Boston Tea Party and further decreased local autonomy, increasing local dissent. Anti-Parliamentary activity by men such as Samuel Adams and John Hancock, followed by reprisals by the British government, were a primary reason for the unity of the Thirteen Colonies and the outbreak of the American Revolution in 1775.
The Battles of Lexington and Concord initiated the American Revolutionary War and were fought in the eponymous Massachusetts towns. Future President George Washington took over what would become the Continental Army after the battle. His first victory was the Siege of Boston in the winter of 1775–76, after which the British were forced to evacuate the city. The event is still celebrated in Suffolk County as Evacuation Day. On the coast, Salem became a center for privateering. Although the documentation is incomplete, about 1,700 letters of marque, issued on a per-voyage basis, were granted during the American Revolution. Nearly 800 vessels were commissioned as privateers and are credited with capturing or destroying about 600 British ships.


Although the American stock market had sustained steep losses the last week in October 1929, Tuesday, October 29 is remembered as the beginning of the Great Depression. The Boston Stock Exchange, drawn into the whirlpool of panic selling that beset the New York Stock Exchange, lost over 25 percent of its value in two days of frenzied trading. The BSE, nearly 100 years old at the time, had helped raise the capital that had funded many of the Commonwealth's factories, railroads, and businesses. " Governor of Massachusetts Frank G. Allen appointed John C. Hull the first Securities Director of Massachusetts.
Hull would assume office in January 1930. His term would end in 1936.
With the departure of several manufacturing companies, the area's industrial economy began to decline during the early 20th century. By the 1920s, competition from the South and Midwest, followed by the Great Depression, led to the collapse of the three main industries in Massachusetts: textiles, shoemaking, and precision mechanics. This decline would continue into the latter half of the century; between 1950 and 1979, the number of Massachusetts residents involved in textile manufacturing declined from 264,000 to 63,000. The 1969 closure of the Springfield Armory, in particular, spurred an exodus of high-paying jobs from Western Massachusetts, which suffered greatly as it de-industrialized during the last 40 years of the 20th century.
Massachusetts manufactured 3.4 percent of total United States military armaments produced during World War II, ranking tenth among the 48 states. In Eastern Massachusetts, following World War II, the economy was transformed from one based on heavy industry into a service-based economy. Government contracts, private investment, and research facilities led to a new and improved industrial climate, with reduced unemployment and increased per capita income. Suburbanization flourished, and by the 1970s, the Route 128 corridor was dotted with high-technology companies who recruited graduates of the area's many elite institutions of higher education.
In 1987, the state received federal funding for the Central Artery/Tunnel Project. Commonly known as "the Big Dig", it was, at the time, the biggest federal highway project ever approved. The project included making the Central Artery a tunnel under downtown Boston, in addition to the re-routing of several other major highways. Often controversial, with numerous claims of graft and mismanagement, and with its initial price tag of $2.5 billion increasing to a final tally of over $15 billion, the Big Dig nonetheless changed the face of Downtown Boston. It connected areas that were once divided by elevated highway (much of the raised old Central Artery was replaced with the Rose Fitzgerald Kennedy Greenway), and improved traffic conditions along with several routes.


In the early 1600s, European colonizers caused virgin soil epidemics such as smallpox, measles, influenza, and perhaps leptospirosis in what is now known as the northeastern region of the United States. Between 1617 and 1619, what was most likely smallpox killed approximately 90% of the Massachusetts Bay Native Americans.
The first English colonizers in Massachusetts, the Puritans, arrived on the Mayflower at Plymouth in 1620. This was the second permanent English colony in the part of North America that later became the United States, after the Jamestown Colony. The "First Thanksgiving" was celebrated by the Puritans after their first harvest in the "New World" that they had colonized and lasted for three days. They were soon followed by other Puritans, who colonized the Massachusetts Bay Colony--now known as Boston--in 1630.
The Puritans believed the Church of England needed to be purified and experienced harassment due to being disliked by English authority. They decided to colonize to Massachusetts intending to establish what they considered an "ideal" religious society. Unlike the Plymouth colony, the Massachusetts Bay Colony was colonized under a royal charter in 1629. Both religious dissent and expansionism resulted in several new colonies being founded, shortly after Plymouth and Massachusetts Bay, elsewhere in New England. The Massachusetts Bay banished dissenters such as Anne Hutchinson and Roger Williams due to religious and political conflict. In 1636, Williams colonized what is now known as Rhode Island, and Hutchinson joined him there several years later. Religious intolerance continued, and among those who objected to this later in the century were the English Quaker preachers Alice and Thomas Curwen, who were publicly flogged and imprisoned in Boston in 1676.
In 1641, Massachusetts expanded inland significantly. The Commonwealth acquired the Connecticut River Valley settlement of Springfield, which had recently disputed with—and defected from—its original administrators, the Connecticut Colony. This established Massachusetts's southern border in the west, though this became disputed territory until 1803–04 due to surveying problems.
Currency was another issue in the colonies. In 1652 the Massachusetts legislature authorized John Hull to produce coinage (mintmaster). "The Hull Mint produced several denominations of silver coinage, including the pine tree shilling, for over 30 years until the political and economic situation made operating the mint no longer practical." Mostly political for Charles II of England deemed the "Hull Mint" high treason in the United Kingdom which had a punishment of Hanging, drawing and quartering. "On April 6, 1681, Randolph petitioned the king, informing him the colony was still pressing their own coins which he saw as high treason and believed it was enough to void the charter. He asked that a writ of Quo warranto (a legal action requiring the defendant to show what authority they have for exercising some right, power, or franchise they claim to hold) be issued against Massachusetts for the violations."
In 1691, the colonies of Massachusetts Bay and Plymouth were united (along with present-day Maine, which had previously been divided between Massachusetts and New York) into the Province of Massachusetts Bay. Shortly after the arrival of the new province's first governor, William Phips, the Salem witch trials took place, where a number of men and women were hanged for alleged witchcraft.
The most destructive earthquake yet known in New England occurred in 1755, causing considerable damage across Massachusetts.


Massachusetts was originally inhabited by tribes of the Algonquian language family, including: Wampanoag, Narragansett, Nipmuc, Pocomtuc, Mahican, and Massachusett. While cultivation of crops like squash and corn were an important part of their diet, the people of these tribes hunted, fished, and searched the forest for most of their food. Villagars lived in lodges called wigwams as well as longhouses. Tribes were led by male or female elders known as sachems.


Eurasia (/jʊəˈreɪʒə/, also UK: /-ʃə/) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago and the Russian   Far East in the east. The continental landmass is bordered by the Atlantic Ocean and Africa to the west, the Pacific Ocean to the east, the Arctic Ocean to the north, and by Africa, the Mediterranean Sea, and the Indian Ocean to the south. The division between Europe and Asia as two continents is a historical social construct, as many of their borders are over land; thus, in some parts of the world, Eurasia is recognized as the largest of the six, five, or four continents on Earth. In geology, Eurasia is often considered as a single rigid megablock. However, the rigidity of Eurasia is debated based on paleomagnetic data.
Eurasia covers around 55,000,000 square kilometres (21,000,000 sq mi), or around 36.2% of the Earth's total land area; and is home to the largest country in the world, Russia. The landmass contains well over 5 billion people, equating to approximately 70% of the human population. Humans first settled in Eurasia between 60,000 and 125,000 years ago. Some major islands, including Great Britain, Iceland, Ireland, and Sri Lanka, as well as those of Japan, the Philippines, and most of Indonesia, are often included in the popular definition of Eurasia, despite being separate from the contiguous landmass.
According to some geographers physiographically, Eurasia is a single continent. The concepts of Europe and Asia as distinct continents date back to antiquity, and their borders are geologically arbitrary and have historically been subjected to occasional change. Eurasia is connected to Africa at the Suez Canal, and Eurasia is sometimes combined with Africa to make the largest contiguous landmass on Earth called Afro-Eurasia. Due to the vast landmass and differences in latitude, Eurasia exhibits all types of climate under the Köppen classification, including the harshest types of hot and cold temperatures, high and low precipitation and various types of ecosystems.


The Russia - EU Four Common Spaces Initiative, is a joint European Union and Russian agreement to closer integrate Russia and the EU, remove barriers to trade and investment and promote reforms and competitiveness. In 2010, Russian Prime Minister Vladimir Putin called for common economic space, free-trade area or more advanced economic integration, stretching from Lisbon to Vladivostok. However, no significant progress was made and the project was put on hold after Russia-EU relations deteriorated following the Russo-Ukrainian War in 2014.


Eurasia formed between 375 and 325 million years ago with the merging of Siberia, Kazakhstania, and Baltica, which was joined to Laurentia, now North America, to form Euramerica. Chinese cratons collided with Siberia's southern coast.


The Federation of Euro-Asian Stock Exchanges (FEAS) is an international organization headquartered in Yerevan, comprising the main stock exchanges in Eastern Europe, the Middle East and Central Asia. The purpose of the Federation is to contribute to the cooperation, development, support and promotion of capital markets in the Eurasian region.


Eurasia has been the host of many ancient civilizations, including those based in Mesopotamia, the Indus Valley and China. In the Axial Age (mid-first millennium BC), a continuous belt of civilizations stretched through the Eurasian subtropical zone from the Atlantic to the Pacific. This belt became the mainstream of world history for two millennia.


Across Eurasia, several single markets have emerged including the Eurasian Economic Space, European Single Market, ASEAN Economic Community and the Gulf Cooperation Council. There are also several international organizations and initiatives which seek to promote integration throughout Eurasia, including:


Originally, “Eurasia” is a geographical notion: in this sense, it is simply the biggest continent; the combined landmass of Europe and Asia. However, geopolitically, the word has several meanings, reflecting specific geopolitical interests. “Eurasia” is one of the most important geopolitical concepts and it figures prominently in the commentaries on the ideas of Halford Mackinder. As Zbigniew Brzezinski observed on Eurasia:

“... how America "manages" Eurasia is critical. A power that dominates “Eurasia” would control two of the world’s three most advanced and economically productive regions. A mere glance at the map also suggests that control over “Eurasia” would almost automatically entail Africa’s subordination, rendering the Western Hemisphere and Oceania geopolitically peripheral to the world’s central continent. About 75 per cent of the world’s people live in “Eurasia”, and most of the world’s physical wealth is there as well, both in its enterprises and underneath its soil. “Eurasia” accounts for about three-fourths of the world’s known energy resources.”
The Russian "Eurasianism" corresponded initially more or less to the land area of Imperial Russia in 1914, including parts of Eastern Europe. One of Russia's main geopolitical interests lies in ever closer integration with those countries that it considers part of “Eurasia.” This concept is further integrated with communist eschatology by author Alexander Dugin as the guiding principle of "self-sufficiency of a large space" during expansion.
The term Eurasia gained geopolitical reputation as one of the three superstates in 1984, George Orwell's novel where constant surveillance and propaganda are strategic elements (introduced as reflexive antagonists) of the heterogeneous dispositif such metapolitical constructs used to control and exercise power.


Similar in concept to the European Union, the Eurasian Union is an economic union established in 2015 including Russia, Armenia, Belarus, Kazakhstan, Kyrgyzstan and observer members Moldova, Uzbekistan, and Cuba. It is headquartered in Moscow, Russia and Minsk, Belarus. The union promotes economic integration among members and is theoretically open to enlargement to include any country in Europe or Asia.


The abdomen, which is less sclerotized than the thorax, consists of 10 segments with membranes in between, allowing for articulated movement. The sternum, on the first segment, is small in some families and is completely absent in others. The last two or three segments form the external parts of the species' sex organs. The genitalia of Lepidoptera are highly varied and are often the only means of differentiating between species. Male genitals include a valva, which is usually large, as it is used to grasp the female during mating. Female genitalia include three distinct sections.
The females of basal moths have only one sex organ, which is used for copulation and as an ovipositor, or egg-laying organ. About 98% of moth species have a separate organ for mating, and an external duct that carries the sperm from the male.
The abdomen of the caterpillar has four pairs of prolegs, normally located on the third to sixth segments of the abdomen, and a separate pair of prolegs by the anus, which have a pair of tiny hooks called crotchets. These aid in gripping and walking, especially in species that lack many prolegs (e. g. larvae of Geometridae). In some basal moths, these prolegs may be on every segment of the body, while prolegs may be completely absent in other groups, which are more adapted to boring and living in sand (e. g., Prodoxidae and Nepticulidae, respectively).


The thorax is made of three fused segments, the prothorax, mesothorax, and metathorax, each with a pair of legs. The first segment contains the first pair of legs. In some males of the butterfly family Nymphalidae, the forelegs are greatly reduced and are not used for walking or perching. The three pairs of legs are covered with scales. Lepidoptera also have olfactory organs on their feet, which aid the butterfly in "tasting" or "smelling" out its food. In the larval form there are 3 pairs of true legs, with up to 11 pairs of abdominal legs (usually eight) and hooklets, called apical crochets.
The two pairs of wings are found on the middle and third segments, or mesothorax and metathorax, respectively. In the more recent genera, the wings of the second segment are much more pronounced, although some more primitive forms have similarly sized wings of both segments. The wings are covered in scales arranged like shingles, which form an extraordinary variety of colors and patterns. The mesothorax has more powerful muscles to propel the moth or butterfly through the air, with the wing of this segment (forewing) having a stronger vein structure. The largest superfamily, the Noctuoidea, has their wings modified to act as tympanal or hearing organs.
The caterpillar has an elongated, soft body that may have hair-like or other projections, three pairs of true legs, with none to 11 pairs of abdominal legs (usually eight) and hooklets, called apical crochets. The thorax usually has a pair of legs on each segment. The thorax is also lined with many spiracles on both the mesothorax and metathorax, except for a few aquatic species, which instead have a form of gills.


The term Lepidoptera was used in 1746 by Carl Linnaeus in his Fauna Svecica. The word is derived from Greek λεπίς lepís, gen. λεπίδος lepídos ("scale") and πτερόν ("wing"). Sometimes, the term Rhopalocera is used for the clade of all butterfly species, derived from the Ancient Greek ῥόπαλον (rhopalon) and κέρας (keras) meaning "club" and "horn", respectively, coming from the shape of the antennae of butterflies.
The origins of the common names "butterfly" and "moth" are varied and often obscure. The English word butterfly is from Old English buttorfleoge, with many variations in spelling. Other than that, the origin is unknown, although it could be derived from the pale yellow color of many species' wings suggesting the color of butter. The species of Heterocera are commonly called moths. The origins of the English word moth are clearer, deriving from Old English] moððe (cf. Northumbrian dialect mohðe) from Common Germanic (compare Old Norse motti, Dutch mot and German Motte all meaning "moth"). Perhaps its origins are related to Old English maða meaning "maggot" or from the root of "midge", which until the 16th century was used mostly to indicate the larva, usually in reference to devouring clothes.
The etymological origins of the word "caterpillar", the larval form of butterflies and moths, are from the early 16th century, from Middle English catirpel, catirpeller, probably an alteration of Old North French catepelose (from Latin cattus, "cat" + pilosus, "hairy").


The Lepidoptera are among the most successful groups of insects. They are found on all continents, except Antarctica, and inhabit all terrestrial habitats ranging from desert to rainforest, from lowland grasslands to mountain plateaus, but almost always associated with higher plants, especially angiosperms (flowering plants). Among the most northern dwelling species of butterflies and moths is the Arctic Apollo (Parnassius arcticus), which is found in the Arctic Circle in northeastern Yakutia, at an altitude of 1,500 metres (4,900 ft) above sea level. In the Himalayas, various Apollo species such as Parnassius epaphus have been recorded to occur up to an altitude of 6,000 metres (20,000 ft) above sea level.
Some lepidopteran species exhibit symbiotic, phoretic, or parasitic lifestyles, inhabiting the bodies of organisms rather than the environment. Coprophagous pyralid moth species, called sloth moths, such as Bradipodicola hahneli and Cryptoses choloepi, are unusual in that they are exclusively found inhabiting the fur of sloths, mammals found in Central and South America.
Two species of Tinea moths have been recorded as feeding on horny tissue and have been bred from the horns of cattle. The larva of Zenodochium coccivorella is an internal parasite of the coccid Kermes species. Many species have been recorded as breeding in natural materials or refuse such as owl pellets, bat caves, honeycombs or diseased fruit.
As of 2007, there were roughly 174,250 lepidopteran species described, with butterflies and skippers estimated to comprise around 17,950, and moths making up the rest. The vast majority of Lepidoptera are to be found in the tropics, but substantial diversity exists on most continents. North America has over 700 species of butterflies and over 11,000 species of moths, while about 400 species of butterflies and 14,000 species of moths are reported from Australia. The diversity of Lepidoptera in each faunal region has been estimated by John Heppner in 1991 based partly on actual counts from the literature, partly on the card indices in the Natural History Museum (London) and the National Museum of Natural History (Washington), and partly on estimates:


Great Britain was probably first inhabited by those who crossed on the land bridge from the European mainland. Human footprints have been found from over 800,000 years ago in Norfolk and traces of early humans have been found (at Boxgrove Quarry, Sussex) from some 500,000 years ago and modern humans from about 30,000 years ago. Until about 16,000 years ago, it was connected to Ireland by only an ice bridge, prior to 9,000 years ago it retained a land connection to the continent, with an area of mostly low marshland joining it to what are now Denmark and the Netherlands.
In Cheddar Gorge, near Bristol, the remains of animal species native to mainland Europe such as antelopes, brown bears, and wild horses have been found alongside a human skeleton, 'Cheddar Man', dated to about 7150 BC. Great Britain became an island at the end of the last glacial period when sea levels rose due to the combination of melting glaciers and the subsequent isostatic rebound of the crust.
Great Britain's Iron Age inhabitants are known as Britons; they spoke Celtic languages.


Politically, Great Britain refers to the whole of England, Scotland and Wales in combination, but not Northern Ireland; it includes islands, such as the Isle of Wight, Anglesey, the Isles of Scilly, the Hebrides and the island groups of Orkney and Shetland, that are part of England, Wales, or Scotland. It does not include the Isle of Man and the Channel Islands.
The political union that joined the kingdoms of England and Scotland happened in 1707 when the Acts of Union ratified the 1706 Treaty of Union and merged the parliaments of the two nations, forming the Kingdom of Great Britain, which covered the entire island. Before this, a personal union had existed between these two countries since the 1603 Union of the Crowns under James VI of Scotland and I of England.


The Romans conquered most of the island (up to Hadrian's Wall in northern England) and this became the Ancient Roman province of Britannia. In the course of the 500 years after the Roman Empire fell, the Britons of the south and east of the island were assimilated or displaced by invading Germanic tribes (Angles, Saxons, and Jutes, often referred to collectively as Anglo-Saxons). At about the same time, Gaelic tribes from Ireland invaded the north-west, absorbing both the Picts and Britons of northern Britain, eventually forming the Kingdom of Scotland in the 9th century. The south-east of Scotland was colonised by the Angles and formed, until 1018, a part of the Kingdom of Northumbria. Ultimately, the population of south-east Britain came to be referred to as the English people, so-named after the Angles.
Germanic speakers referred to Britons as Welsh. This term came to be applied exclusively to the inhabitants of what is now Wales, but it also survives in names such as Wallace and in the second syllable of Cornwall. Cymry, a name the Britons used to describe themselves, is similarly restricted in modern Welsh to people from Wales, but also survives in English in the place name of Cumbria. The Britons living in the areas now known as Wales, Cumbria and Cornwall were not assimilated by the Germanic tribes, a fact reflected in the survival of Celtic languages in these areas into more recent times. At the time of the Germanic invasion of Southern Britain, many Britons emigrated to the area now known as Brittany, where Breton, a Celtic language closely related to Welsh and Cornish and descended from the language of the emigrants, is still spoken. In the 9th century, a series of Danish assaults on northern English kingdoms led to them coming under Danish control (an area known as the Danelaw). In the 10th century, however, all the English kingdoms were unified under one ruler as the kingdom of England when the last constituent kingdom, Northumbria, submitted to Edgar in 959. In 1066, England was conquered by the Normans, who introduced a Norman-speaking administration that was eventually assimilated. Wales came under Anglo-Norman control in 1282, and was officially annexed to England in the 16th century.


The Greco-Egyptian scientist Ptolemy referred to the larger island as great Britain (μεγάλη Βρεττανία megale Brettania) and to Ireland as little Britain (μικρὰ Βρεττανία mikra Brettania) in his work Almagest (147–148 AD). In his later work, Geography (c. 150 AD), he gave the islands the names Alwion, Iwernia, and Mona (the Isle of Man), suggesting these may have been the names of the individual islands not known to him at the time of writing Almagest. The name Albion appears to have fallen out of use sometime after the Roman conquest of Britain, after which Britain became the more commonplace name for the island.
After the Anglo-Saxon period, Britain was used as a historical term only. Geoffrey of Monmouth in his pseudohistorical Historia Regum Britanniae (c. 1136) refers to the
island of Great Britain as Britannia major ("Greater Britain"), to distinguish it from Britannia minor ("Lesser Britain"), the continental region which approximates to modern Brittany, which had been settled in the fifth and sixth centuries by Celtic Briton migrants from Great Britain.
The term Great Britain was first used officially in 1474, in the instrument drawing up the proposal for a marriage between Cecily, daughter of Edward IV of England, and James, son of James III of Scotland, which described it as "this Nobill Isle, callit Gret Britanee". While promoting a possible royal match in 1548, Lord Protector Somerset said that the English and Scots were, "like as twoo brethren of one Islande of great Britaynes again." In 1604, James VI and I styled himself "King of Great Brittaine, France and Ireland".


Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of 209,331 km² (80,823 sq mi), it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is dominated by a maritime climate with narrow temperature differences between seasons. The 60% smaller island of Ireland is to the west—together with these islands, along with over 1,000 smaller surrounding islands and named substantial rocks, form the British Isles archipelago.
Connected to mainland Europe by a landbridge called Doggerland until 9,000 years ago, Great Britain has been inhabited by modern humans for around 30,000 years. In 2011, it had a population of about 61 million, making it the world's third-most-populous island after Java in Indonesia and Honshu in Japan.
The term "Great Britain" is often used to refer to England, Scotland and Wales, including their component adjoining islands. Great Britain and Northern Ireland now constitute the United Kingdom. The single Kingdom of Great Britain resulted from the 1707 Acts of Union between the kingdoms of England (which at the time incorporated Wales) and Scotland.


The archipelago has been referred to by a single name for over 2000 years: the term 'British Isles' derives from terms used by classical geographers to describe this island group. By 50 BC Greek geographers were using equivalents of Prettanikē as a collective name for the British Isles. However, with the Roman conquest of Britain the Latin term Britannia was used for the island of Great Britain, and later Roman-occupied Britain south of Caledonia.
The earliest known name for Great Britain is Albion (Greek: Ἀλβιών) or insula Albionum, from either the Latin albus meaning "white" (possibly referring to the white cliffs of Dover, the first view of Britain from the continent) or the "island of the Albiones". The oldest mention of terms related to Great Britain was by Aristotle (384–322 BC), or possibly by Pseudo-Aristotle, in his text On the Universe, Vol. III. To quote his works, "There are two very large islands in it, called the British Isles, Albion and Ierne".
The first known written use of the word Britain was an ancient Greek transliteration of the original P-Celtic term in a work on the travels and discoveries of Pytheas that has not survived. The earliest existing records of the word are quotations of the periplus by later authors, such as those within Strabo's Geographica, Pliny's Natural History and Diodorus of Sicily's Bibliotheca historica. Pliny the Elder (AD 23–79) in his Natural History records of Great Britain: "Its former name was Albion; but at a later period, all the islands, of which we shall just now briefly make mention, were included under the name of 'Britanniæ.'"
The name Britain descends from the Latin name for Britain, Britannia or Brittānia, the land of the Britons. Old French Bretaigne (whence also Modern French Bretagne) and Middle English Bretayne, Breteyne. The French form replaced the Old English Breoton, Breoten, Bryten, Breten (also Breoton-lond, Breten-lond). Britannia was used by the Romans from the 1st century BC for the British Isles taken together. It is derived from the travel writings of Pytheas around 320 BC, which described various islands in the North Atlantic as far north as Thule (probably Norway).
The peoples of these islands of Prettanike were called the Πρεττανοί, Priteni or Pretani.Priteni is the source of the Welsh language term Prydain, Britain, which has the same source as the Goidelic term Cruithne used to refer to the early Brythonic-speaking inhabitants of Ireland. The latter were later called Picts or Caledonians by the Romans. Greek historians Diodorus of Sicily and Strabo preserved variants of Prettanike from the work of Greek explorer Pytheas of Massalia, who travelled from his home in Hellenistic southern Gaul to Britain in the 4th century BC. The term used by Pytheas may derive from a Celtic word meaning "the painted ones" or "the tattooed folk" in reference to body decorations. According to Strabo, Pytheas referred to Britain as Bretannikē, which is treated a feminine noun. Marcian of Heraclea, in his Periplus maris exteri, described the island group as αἱ Πρεττανικαὶ νῆσοι (the Prettanic Isles).


On 20 October 1604 King James, who had succeeded separately to the two thrones of England and Scotland, proclaimed himself "King of Great Brittaine, France, and Ireland". When James died in 1625 and the Privy Council of England was drafting the proclamation of the new king, Charles I, a Scottish peer, Thomas Erskine, 1st Earl of Kellie, succeeded in insisting that it use the phrase "King of Great Britain", which James had preferred, rather than King of Scotland and England (or vice versa). While that title was also used by some of James's successors, England and Scotland each remained legally separate countries, each with its own parliament, until 1707, when each parliament passed an Act of Union to ratify the Treaty of Union that had been agreed the previous year. This created a single kingdom with one parliament with effect from 1 May 1707. The Treaty of Union specified the name of the new all-island state as "Great Britain", while describing it as "One Kingdom" and "the United Kingdom". To most historians, therefore, the all-island state that existed between 1707 and 1800 is either "Great Britain" or the "Kingdom of Great Britain".


Great Britain refers geographically to the island of Great Britain. Politically, it may refer to the whole of England, Scotland and Wales, including their smaller offshore islands. It is not technically correct to use the term to refer to the whole of the United Kingdom which includes Northern Ireland, though the Oxford English Dictionary states "...the term is also used loosely to refer to the United Kingdom."
Similarly, Britain can refer to either all islands in Great Britain, the largest island, or the political grouping of countries. There is no clear distinction, even in government documents: the UK government yearbooks have used both Britain and United Kingdom.
GB and GBR are used instead of UK in some international codes to refer to the United Kingdom, including the Universal Postal Union, international sports teams, NATO, and the International Organization for Standardization country codes ISO 3166-2 and ISO 3166-1 alpha-3, whilst the aircraft registration prefix is G.
On the Internet, .uk is the country code top-level domain for the United Kingdom. A .gb top-level domain was used to a limited extent, but is now deprecated; although existing registrations still exist (mainly by government organizations and email providers), the domain name registrar will not take new registrations.
In the Olympics, Team GB is used by the British Olympic Association to represent the British Olympic team. The Olympic Council of Ireland claims to represent the whole island of Ireland, and Northern Irish sportspeople may choose to compete for either team, most choosing to represent Ireland.


A scree has many small interstitial voids, while an ice cave has a few large hollows. Due to cold air seepage and air circulation, the bottom of scree slopes have a thermal regime similar to ice caves.
Because subsurface ice is separated from the surface by thin, permeable sheets of sediment, screes experience cold air seepage from the bottom of the slope where sediment is thinnest. This freezing circulating air maintains internal scree temperatures 6.8-9.0 °C colder than external scree temperatures. These <0 °C thermal anomalies occur up to 1000m below sites with mean annual air temperatures of 0 °C.
Patchy permafrost, which forms under conditions <0 °C, probably exists at the bottom of some scree slopes despite mean annual air temperatures of 6.8–7.5 °C.


The Seeds were an American psychedelic garage rock band formed in Los Angeles, California in 1965. The band's classic line-up featured frontman Sky Saxon, guitarist Jan Savage (born Buck Jan Reeder), keyboardist Daryl Hooper and drummer Rick Andridge. In 1968, the band changed their name to Sky Saxon and the Seeds, with Savage and Andridge departing the band. They went on to release a handful of additional singles, with Hooper also departing at some point before splitting up in circa 1972.
In 1989, the original lineup of the band reformed for a handful of live dates in the US.
In 2003, Saxon reformed the Seeds with original guitarist Jan Savage (who departed part way through a European tour the same year due to ill health). Releasing 2 further studio albums, the band continued to tour the US, UK and Europe up to Saxon's death in 2009.


After the dissolution of the Seeds, Sky Saxon joined the Yahowha religious group, inspired by their leader Father Yod. Although a member of the Source Family for several years, Saxon did not participate in any of the albums released by Yahowha 13 in the mid-1970s. He does appear on the "Golden Sunrise" album by Fire Water Air, which was a Yahowha 13 offshoot, and later recorded the "Yod Ship Suite" album in memory of the deceased Father Yod. In the 1970s, Saxon also released the solo LPs "Lovers Cosmic Voyage" (credited to Sunlight) and "Live at the Orpheum" credited to Sunlight Rainbow.  In the 1980s, Saxon collaborated with several bands—including Redd Kross and The Chesterfield Kings—before reforming the original Seeds in 1989 to headline "The Summer of Love Tour", along with Big Brother and the Holding Company, Arthur Lee and Love, The Music Machine, and The Strawberry Alarm Clock.
The Seeds remained dormant again until 2003, when Saxon reformed them with original guitarist Jan Savage and newcomers Rik Collins on bass, Mark Bellgraph on guitar, and Dave Klein on keyboards and Justin Polimeni on Drums. This new version of the Seeds went through several incarnations, with Savage departing midway through their 2003 European tour due to his health. Saxon remained the only original member of the Seeds, which continued to tour Europe and the United States.
Saxon died on June 25, 2009, of heart and kidney failure. The Seeds' original drummer, Rick Andridge, died in 2011.  Jan Savage died on August 5, 2020, aged 77.


2017 (MMXVII) was a common year starting on Sunday of the Gregorian calendar, the 2017th year of the Common Era (CE) and Anno Domini (AD) designations, the 17th  year of the 3rd millennium and the 21st century, and the  8th   year of the 2010s decade.

2017 was designated as International Year of Sustainable Tourism for Development by the United Nations General Assembly.


Common worldwide or nearly worldwide genera are Aeshna and Anax. The African Anax tristis has a wingspan over 125 mm, making it one of the world's largest known dragonflies.
There are 41 North American species in 11 genera in this family. Most European species belong to Aeshna. Their American name "darner" stems from the female abdomens looking like a sewing needle, as they cut into plant stem when they lay their eggs through the ovipositor.
The dragonflies mate in flight. The eggs are deposited in water or close by. The larvae (nymphs or naiads) are generally slender compared to those of other families, with a long and flat extensible lower lip (labium). The larvae are aquatic predators, feeding on other insects and even small fish.
The adults spend large amounts of time in the air and seem to fly tirelessly with their four large and powerful wings. They can fly forwards or backwards or hover like a helicopter. The wings are always extended horizontally.
Their abdomens are long and thin. Most are colored blue and or green, with black and occasionally yellow. Their large, hemispherical, compound eyes touch in the midline and nearly cover their heads. They have an extremely good sight, and are voracious insect predators, using their sharp, biting mouthparts. They are, therefore, very beneficial.
All are extremely hard to catch because of their flying abilities and keen sight.
A proposal has been made to split this family into Aeshnidae and Telephlebiidae.
The name may have resulted from a printer's error in spelling the Greek Aechma, "a spear". The spelling Aeschnidae has been intermittently used over a period of time, but is now abandoned for the original name Aeshnidae. However, derived genus names (such as Rhionaeschna) retain the 'sch' spelling, as this is how they were first cited.


Singly is a commune in the Ardennes department in northern France.


The first Europeans arrived in the archipelago in 1512, when Portuguese traders, led by Francisco Serrão, sought to monopolise the sources of nutmeg, cloves, and cubeb pepper in the Maluku Islands. Dutch and British traders followed. In 1602, the Dutch established the Dutch East India Company (VOC) and became the dominant European power for almost 200 years. The VOC was dissolved in 1800 following bankruptcy, and the Netherlands established the Dutch East Indies as a nationalised colony.
For most of the colonial period, Dutch control over the archipelago was tenuous. Dutch forces were engaged continuously in quelling rebellions both on and off Java. The influence of local leaders such as Prince Diponegoro in central Java, Imam Bonjol in central Sumatra, Pattimura in Maluku, and the bloody 30-year war in Aceh weakened the Dutch and tied up the colonial military forces. Only in the early 20th century did Dutch dominance extend to what was to become Indonesia's current boundaries.
The Japanese invasion and subsequent occupation during World War II ended Dutch rule and encouraged the previously suppressed independence movement. Two days after the surrender of Japan in August 1945, Sukarno and Mohammad Hatta, influential nationalist leaders, proclaimed Indonesian independence and were appointed president and vice-president, respectively.
The Netherlands attempted to re-establish their rule, and a bitter armed and diplomatic struggle ended in December 1949 when the Dutch formally recognised Indonesian independence in the face of international pressure and transferred sovereignty to the United States of Indonesia. Despite extraordinary political, social and sectarian divisions, Indonesians, on the whole, found unity in their fight for independence.


As president, Sukarno moved Indonesia from democracy towards authoritarianism and maintained power by balancing the opposing forces of the military, political Islam, and the increasingly powerful Communist Party of Indonesia (PKI). Tensions between the military and the PKI culminated in an attempted coup in 1965. The army, led by Major General Suharto, countered by instigating a violent anti-communist purge that killed between 500,000 and one million people. The PKI was blamed for the coup and effectively destroyed. Suharto capitalised on Sukarno's weakened position, and following a drawn-out power play with Sukarno, Suharto was appointed president in March 1968. His "New Order" administration, supported by the United States, encouraged foreign direct investment, which was a crucial factor in the subsequent three decades of substantial economic growth.
Indonesia was the country hardest hit by the 1997 Asian financial crisis. It brought out popular discontent with the New Order's corruption and suppression of political opposition and ultimately ended Suharto's presidency. In 1999, East Timor seceded from Indonesia, following its 1975 invasion by Indonesia and a 25-year occupation marked by international condemnation of human rights abuses.
Since 1998, democratic processes have been strengthened by enhancing regional autonomy and instituting the country's first direct presidential election in 2004. Political, economic and social instability, corruption, and instances of terrorism remained problems in the 2000s; however, the economy has performed strongly in the last 15 years. Although relations among the diverse population are mostly harmonious, acute sectarian discontent and violence remain a problem in some areas. A political settlement to an armed separatist conflict in Aceh was achieved in 2005 following the 2004 Indian Ocean earthquake and tsunami that killed 130,000 Indonesians.


Fossilised remains of Homo erectus, popularly known as the "Java Man", suggest the Indonesian archipelago was inhabited two million to 500,000 years ago. Homo sapiens reached the region around 43,000 BCE. Austronesian peoples, who form the majority of the modern population, migrated to Southeast Asia from what is now Taiwan. They arrived in the archipelago around 2,000 BCE and confined the native Melanesian peoples to the far eastern regions as they spread east. Ideal agricultural conditions and the mastering of wet-field rice cultivation as early as the eighth century BCE allowed villages, towns, and small kingdoms to flourish by the first century CE. The archipelago's strategic sea-lane position fostered inter-island and international trade, including with Indian kingdoms and Chinese dynasties, from several centuries BCE. Trade has since fundamentally shaped Indonesian history.
From the seventh century CE, the Srivijaya naval kingdom flourished due to trade and the influences of Hinduism and Buddhism. Between the eighth and tenth centuries CE, the agricultural Buddhist Sailendra and Hindu Mataram dynasties thrived and declined in inland Java, leaving grand religious monuments such as Sailendra's Borobudur and Mataram's Prambanan. The Hindu Majapahit kingdom was founded in eastern Java in the late 13th century, and under Gajah Mada, its influence stretched over much of present-day Indonesia. This period is often referred to as a "Golden Age" in Indonesian history.
The earliest evidence of Islamized populations in the archipelago dates to the 13th century in northern Sumatra. Other parts of the archipelago gradually adopted Islam, and it was the dominant religion in Java and Sumatra by the end of the 16th century. For the most part, Islam overlaid and mixed with existing cultural and religious influences, which shaped the predominant form of Islam in Indonesia, particularly in Java.


Around the second century BCE the first-known city-states emerged in central Myanmar. The city-states were founded as part of the southward migration by the Tibeto-Burman-speaking Pyu people, the earliest inhabitants of Myanmar of whom records are extant, from present-day Yunnan. The Pyu culture was heavily influenced by trade with India, importing Buddhism as well as other cultural, architectural and political concepts, which would have an enduring influence on later Burmese culture and political organisation.
By the 9th century, several city-states had sprouted across the land: the Pyu in the central dry zone, Mon along the southern coastline and Arakanese along the western littoral. The balance was upset when the Pyu came under repeated attacks from Nanzhao between the 750s and the 830s. In the mid-to-late 9th century the Bamar people founded a small settlement at Bagan. It was one of several competing city-states until the late 10th century, when it grew in authority and grandeur.


Pagan gradually grew to absorb its surrounding states until the 1050s–1060s when Anawrahta founded the Pagan Kingdom, the first ever unification of the Irrawaddy valley and its periphery. In the 12th and 13th centuries, the Pagan Empire and the Khmer Empire were two main powers in mainland Southeast Asia. The Burmese language and culture gradually became dominant in the upper Irrawaddy valley, eclipsing the Pyu, Mon and Pali norms by the late 12th century. Theravada Buddhism slowly began to spread to the village level, although Tantric, Mahayana, Hinduism, and folk religion remained heavily entrenched. Pagan's rulers and wealthy built over 10,000 Buddhist temples in the Pagan capital zone alone. Repeated Mongol invasions in the late 13th century toppled the four-century-old kingdom in 1287.
Pagan's collapse was followed by 250 years of political fragmentation that lasted well into the 16th century. Like the Burmans four centuries earlier, Shan migrants who arrived with the Mongol invasions stayed behind. Several competing Shan States came to dominate the entire northwestern to eastern arc surrounding the Irrawaddy valley. The valley too was beset with petty states until the late 14th century when two sizeable powers, Ava Kingdom and Hanthawaddy Kingdom, emerged. In the west, a politically fragmented Arakan was under competing influences of its stronger neighbours until the Kingdom of Mrauk U unified the Arakan coastline for the first time in 1437. The kingdom was a protectorate of the Bengal Sultanate at different time periods.
In the 14th and 15th centuries, Ava fought wars of unification but could never quite reassemble the lost empire. Having held off Ava, the Mon-speaking Hanthawaddy entered its golden age, and Arakan went on to become a power in its own right for the next 350 years. In contrast, constant warfare left Ava greatly weakened, and it slowly disintegrated from 1481 onward. In 1527, the Confederation of Shan States conquered Ava and ruled Upper Myanmar until 1555.
Like the Pagan Empire, Ava, Hanthawaddy and the Shan states were all multi-ethnic polities. Despite the wars, cultural synchronisation continued. This period is considered a golden age for Burmese culture. Burmese literature "grew more confident, popular, and stylistically diverse", and the second generation of Burmese law codes as well as the earliest pan-Burma chronicles emerged. Hanthawaddy monarchs introduced religious reforms that later spread to the rest of the country. Many splendid temples of Mrauk U were built during this period.


The name of the country has been a matter of dispute and disagreement, particularly in the early 21st century, focusing mainly on the political legitimacy of those using Myanmar versus Burma. Both names derive from the earlier Burmese Mranma or Mramma, an ethnonym for the majority Burman ethnic group, of uncertain etymology. The terms are also popularly thought to derive from Brahma Desha or  ब्रह्मादेश/ब्रह्मावर्त (Sanskrit) after Brahma.
In 1989, the military government officially changed the English translations of many names dating back to Burma's colonial period or earlier, including that of the country itself: Burma became Myanmar. The renaming remains a contested issue. Many political and ethnic opposition groups and countries continue to use Burma because they do not recognise the legitimacy of the ruling military government or its authority to rename the country.
In April 2016, soon after taking office, Aung San Suu Kyi commented on the question of which name should be used and said that "it is up to you because there is nothing in the constitution of our country that says that you must use any term in particular". She continued, "I use Burma very often because I am used to using it. But it does not mean that I require other people to do that as well. And I'll make an effort to say Myanmar from time to time so you all feel comfortable."
The country's official full name is "Republic of the Union of Myanmar" (ပြည်ထောင်စုသမ္မတ မြန်မာနိုင်ငံတော်, Pyihtaungsu Thamada Myanma Naingngantaw, [pjìdàʊɴzṵ θàɴməda̰ mjəmà nàɪɴŋàɴdɔ̀]). Countries that do not officially recognise that name use the long form "Union of Burma" instead. In English, the country is popularly known as either Burma or Myanmar. In Burmese, the pronunciation depends on the register used and is either Bama ([bəmà]) or Myamah ([mjəmà]). The name Burma has been in use in English since the 18th century.
Official United States policy retains Burma as the country's name although the State Department's website lists the country as Burma (Myanmar). The CIA's World Factbook lists the country as Burma as of February 2021. The government of Canada has in the past used Burma, such as in its 2007 legislation imposing sanctions but as of August 2020 generally uses Myanmar. The Czech Republic officially uses Myanmar, although its Ministry of Foreign Affairs uses both Myanmar and Burma on its website. The United Nations uses Myanmar, as does the ASEAN and as do Australia, Russia, Germany, China, India, Bangladesh, Norway, Japan and Switzerland. Most English-speaking international news media refer to the country by the name Myanmar, including the BBC, CNN, Al Jazeera, Reuters, and the Australian Broadcasting Corporation (ABC)/Radio Australia.
Myanmar is known by a name deriving from Burma as opposed to Myanmar in Spanish, Italian, Romanian, and Greek – Birmania being the local version of Burma in both Italian and Spanish, Birmânia in Portuguese, and Birmanie in French. As in the past, French-language media today consistently use Birmanie.
There is no established pronunciation of the English name Myanmar, and at least nine different pronunciations exist. Those with two syllables are listed as more common by major UK and US dictionaries except Collins: /ˌmjænˈmɑːr/, /ˈmjænmɑːr/, /ˌmjɑːnˈmɑːr/ (listen), /ˈmjɑːnmɑːr/. Dictionaries and other sources also report pronunciations with three syllables /ˈmiːənmɑːr/, /miˈænmɑːr/, /ˌmaɪənˈmɑːr/, /maɪˈɑːnmɑːr/, /ˈmaɪænmɑːr/.
As John Wells explains, the English spellings of both Myanmar and Burma assume a non-rhotic variety of English, in which the letter r before a consonant or finally serves merely to indicate a long vowel: [ˈmjænmɑː, ˈbɜːmə]. So the pronunciation of the last syllable of Myanmar as [mɑːr] or of Burma as [bɜːrmə] by some speakers in the UK and most speakers in North America is in fact a spelling pronunciation based on a misunderstanding of non-rhotic spelling conventions. The final r in Myanmar was not intended for pronunciation and is there to ensure that the final a is pronounced with the broad ah (/ɑː/) in "father". If the Burmese name မြန်မာ [mjəmà] were spelled "Myanma" in English, this would be pronounced /ə/ at the end by all English speakers. If it were spelled "Myanmah", the end would be pronounced /ɑː/ by all English speakers.


In the 19th century, Burmese rulers, whose country had not previously been of particular interest to European traders, sought to maintain their traditional influence in the western areas of Assam, Manipur and Arakan. Pressing them, however, was the British East India Company, which was expanding its interests eastwards over the same territory. Over the next sixty years, diplomacy, raids, treaties and compromises, known collectively as the Anglo-Burmese Wars, continued until Britain proclaimed control over most of Burma. With the fall of Mandalay, all of Burma came under British rule, being annexed on 1 January 1886.
Throughout the colonial era, many Indians arrived as soldiers, civil servants, construction workers and traders and, along with the Anglo-Burmese community, dominated commercial and civil life in Burma. Rangoon became the capital of British Burma and an important port between Calcutta and Singapore. Burmese resentment was strong, and was vented in violent riots that paralysed Rangoon on occasion until the 1930s. Some of the discontent was caused by a disrespect for Burmese culture and traditions such as the British refusal to remove shoes when they entered pagodas. Buddhist monks became the vanguards of the independence movement. U Wisara, an activist monk, died in prison after a 166-day hunger strike to protest against a rule that forbade him to wear his Buddhist robes while imprisoned.
On 1 April 1937, Burma became a separately administered colony of Great Britain, and Ba Maw became the first Prime Minister and Premier of Burma. Ba Maw was an outspoken advocate for Burmese self-rule, and he opposed the participation of Great Britain, and by extension Burma, in World War II. He resigned from the Legislative Assembly and was arrested for sedition. In 1940, before Japan formally entered the war, Aung San formed the Burma Independence Army in Japan.
As a major battleground, Burma was devastated during World War II by the Japanese invasion. Within months after they entered the war, Japanese troops had advanced on Rangoon, and the British administration had collapsed. A Burmese Executive Administration headed by Ba Maw was established by the Japanese in August 1942. Wingate's British Chindits were formed into long-range penetration groups trained to operate deep behind Japanese lines. A similar American unit, Merrill's Marauders, followed the Chindits into the Burmese jungle in 1943. Beginning in late 1944, allied troops launched a series of offensives that led to the end of Japanese rule in July 1945. The battles were intense with much of Burma laid waste by the fighting. Overall, the Japanese lost some 150,000 men in Burma with 1,700 prisoners taken. Although many Burmese fought initially for the Japanese as part of the Burma Independence Army, many Burmese, mostly from the ethnic minorities, served in the British Burma Army. The Burma National Army and the Arakan National Army fought with the Japanese from 1942 to 1944 but switched allegiance to the Allied side in 1945. Overall, 170,000 to 250,000 Burmese civilians died during World War II.
Following World War II, Aung San negotiated the Panglong Agreement with ethnic leaders that guaranteed the independence of Myanmar as a unified state. Aung Zan Wai, Pe Khin, Bo Hmu Aung, Sir Maung Gyi, Dr. Sein Mya Maung, Myoma U Than Kywe were among the negotiators of the historic Panglong Conference negotiated with Bamar leader General Aung San and other ethnic leaders in 1947. In 1947, Aung San became Deputy Chairman of the Executive Council of Myanmar, a transitional government. But in July 1947, political rivals assassinated Aung San and several cabinet members.


Political unification returned in the mid-16th century, through the efforts of Taungoo, a former vassal state of Ava. Taungoo's young, ambitious King Tabinshwehti defeated the more powerful Hanthawaddy in the Toungoo–Hanthawaddy War. His successor Bayinnaung went on to conquer a vast swath of mainland Southeast Asia including the Shan states, Lan Na, Manipur, Mong Mao, the Ayutthaya Kingdom, Lan Xang and southern Arakan. However, the largest empire in the history of Southeast Asia unravelled soon after Bayinnaung's death in 1581, completely collapsing by 1599. Ayutthaya seized Tenasserim and Lan Na, and Portuguese mercenaries established Portuguese rule at Thanlyin (Syriam).

The dynasty regrouped and defeated the Portuguese in 1613 and Siam in 1614. It restored a smaller, more manageable kingdom, encompassing Lower Myanmar, Upper Myanmar, Shan states, Lan Na and upper Tenasserim. The restored Toungoo kings created a legal and political framework whose basic features continued well into the 19th century. The crown completely replaced the hereditary chieftainships with appointed governorships in the entire Irrawaddy valley and greatly reduced the hereditary rights of Shan chiefs. Its trade and secular administrative reforms built a prosperous economy for more than 80 years. From the 1720s onward, the kingdom was beset with repeated Meithei raids into Upper Myanmar and a nagging rebellion in Lan Na. In 1740, the Mon of Lower Myanmar founded the Restored Hanthawaddy Kingdom. Hanthawaddy forces sacked Ava in 1752, ending the 266-year-old Toungoo Dynasty.
After the fall of Ava, the Konbaung–Hanthawaddy War involved one resistance group under Alaungpaya defeating the Restored Hanthawaddy, and by 1759 he had reunited all of Myanmar and Manipur and driven out the French and the British, who had provided arms to Hanthawaddy. By 1770, Alaungpaya's heirs had subdued much of Laos and fought and won the Burmese–Siamese War against Ayutthaya and the Sino-Burmese War against Qing China.
With Burma preoccupied by the Chinese threat, Ayutthaya recovered its territories by 1770 and went on to capture Lan Na by 1776. Burma and Siam went to war until 1855, but all resulted in a stalemate, exchanging Tenasserim (to Burma) and Lan Na (to Ayutthaya). Faced with a powerful China and a resurgent Ayutthaya in the east, King Bodawpaya turned west, acquiring Arakan (1785), Manipur (1814) and Assam (1817). It was the second-largest empire in Burmese history but also one with a long ill-defined border with British India.
The breadth of this empire was short-lived. In 1826, Burma lost Arakan, Manipur, Assam and Tenasserim to the British in the First Anglo-Burmese War. In 1852, the British easily seized Lower Burma in the Second Anglo-Burmese War. King Mindon Min tried to modernise the kingdom and in 1875 narrowly avoided annexation by ceding the Karenni States. The British, alarmed by the consolidation of French Indochina, annexed the remainder of the country in the Third Anglo-Burmese War in 1885.
Konbaung kings extended Restored Toungoo's administrative reforms and achieved unprecedented levels of internal control and external expansion. For the first time in history, the Burmese language and culture came to predominate the entire Irrawaddy valley. The evolution and growth of Burmese literature and theatre continued, aided by an extremely high adult male literacy rate for the era (half of all males and 5% of females). Nonetheless, the extent and pace of reforms were uneven and ultimately proved insufficient to stem the advance of British colonialism.


Myanmar, officially the Republic of the Union of Myanmar (Burmese: ပြည်ထောင်စု သမ္မတ မြန်မာနိုင်ငံတော်; [pjìdàʊɴzṵ θàɴməda̰ mjəmà nàɪɴŋàɴdɔ̀]), formerly known as Burma, is a country in Southeast Asia. It is the largest country in Mainland Southeast Asia, and has a population of about 54 million as of 2017. Myanmar is bordered by Bangladesh and India to its northwest, China to its northeast, Laos and Thailand to its east and southeast, and the Andaman Sea and the Bay of Bengal to its south and southwest. The country's capital city is Naypyidaw, and its largest city is Yangon (Rangoon).
Early civilisations in the area included the Tibeto-Burman-speaking Pyu city-states in Upper Myanmar and the Mon kingdoms in Lower Myanmar. In the 9th century, the Bamar people entered the upper Irrawaddy valley, and following the establishment of the Pagan Kingdom in the 1050s, the Burmese language, culture, and Theravada Buddhism slowly became dominant in the country. The Pagan Kingdom fell to Mongol invasions, and several warring states emerged. In the 16th century, reunified by the Taungoo dynasty, the country became the largest empire in the history of Southeast Asia for a short period.
The early 19th-century Konbaung dynasty ruled over an area that included modern Myanmar and briefly controlled Manipur and Assam as well. The British East India Company seized control of the administration of Myanmar after three Anglo-Burmese Wars in the 19th century, and the country became a British colony. After a brief Japanese occupation, Myanmar was reconquered by the Allies and gained independence in 1948. Following a coup d'état in 1962, it became a military dictatorship under the Burma Socialist Programme Party.
For most of its independent years, the country has been engrossed in rampant ethnic strife and its myriad ethnic groups have been involved in one of the world's longest-running ongoing civil wars. During this time, the United Nations and several other organisations have reported consistent and systemic human rights violations in the country. In 2011, the military junta was officially dissolved following a 2010 general election, and a nominally civilian government was installed. This, along with the release of Aung San Suu Kyi and political prisoners and successful elections in 2015, improved the country's human rights record and foreign relations and led to the easing of trade and other economic sanctions, although the country's treatment of its ethnic minorities, particularly in connection with the Rohingya conflict, continued to be condemned by international organizations and many nations.
Following the 2020 Myanmar general election, in which Aung San Suu Kyi's party won a clear majority in both houses, the Burmese military (Tatmadaw) again seized power in a coup d'état. The coup, which was widely condemned, led to continuous ongoing widespread protests in Myanmar and has been marked by violent political repression by the military. The military also arrested Aung San Suu Kyi and charged her with crimes ranging from corruption to the violation of COVID-19 protocols, all of which have been labeled as "politically motivated" by independent observers, in order to remove her from public life.
Myanmar is a member of the East Asia Summit, Non-Aligned Movement, ASEAN, and BIMSTEC, but it is not a member of the Commonwealth of Nations despite once being part of the British Empire. The country is very rich at natural resources, such as jade, gems, oil, natural gas, teak and other minerals, as well as also endowed with renewable energy, having the highest solar power potential compared to other countries of the Great Mekong Subregion. However, Myanmar has long suffered from instability, factional violence, corruption, poor infrastructure, as well as long history of colonial exploitation with little regard to human development. In 2013, its GDP (nominal) stood at US$56.7 billion and its GDP (PPP) at US$221.5 billion. The income gap in Myanmar is among the widest in the world, as a large proportion of the economy is controlled by cronies of the military junta. As of 2020, according to the Human Development Index, Myanmar ranks 147 out of 189 countries in terms of human development. Since 2021, more than 600,000 people were displaced across Myanmar due to the surge in violence post-coup, with more than 3 million people in dire need of humanitarian assistance.


Archaeological evidence shows that Homo erectus lived in the region now known as Myanmar as early as 750,000 years ago, with no more erectus finds after 75,000 years ago. The first evidence of Homo sapiens is dated to about 25,000 BP with discoveries of stone tools in central Myanmar. Evidence of Neolithic age domestication of plants and animals and the use of polished stone tools dating to sometime between 10,000 and 6,000 BCE has been discovered in the form of cave paintings in Padah-Lin Caves.
The Bronze Age arrived c. 1500 BCE when people in the region were turning copper into bronze, growing rice and domesticating poultry and pigs; they were among the first people in the world to do so. Human remains and artefacts from this era were discovered in Monywa District in the Sagaing Region. The Iron Age began around 500 BCE with the emergence of iron-working settlements in an area south of present-day Mandalay. Evidence also shows the presence of rice-growing settlements of large villages and small towns that traded with their surroundings as far as China between 500 BCE and 200 CE. Iron Age Burmese cultures also had influences from outside sources such as India and Thailand, as seen in their funerary practices concerning child burials. This indicates some form of communication between groups in Myanmar and other places, possibly through trade.


Development of the haustoria was a significant evolutionary event that allowed for the advancement of parasitic plants. The holoparasitic clade, Orobanche, delineates the first transition from hemiparasitism to holoparasitism within Orobanchaceae.
Despite the similar morphological traits found in both Scrophulariaceae and Orobanchaceae, the latter is now morphologically and molecularly considered monophyletic, though many of its genera were once considered a part of the family Scrophulariaceae.
Lindenbergia, once treated as a member of the Scrophulariaceae, is the one of the only autotrophic genera within Orobanchaceae. It is believed to be the sister group to the hemiparasitic genera within its family.


Orobanchaceae comprises the following genera, listed according to their life history trait.
Bartsiella
Bornmuellerantha
Brachystigma
Brandisia
Cyclocheilon
Kopsiopsis
Macrosyringion
Odontiella


The hermaphroditic flowers are bilaterally symmetrical and grow either in racemes or spikes or singly at the apex of the slender stem. The tubular calyx is formed by 2–5 united sepals. There are five united, bilabiate petals forming the corolla and they may be yellowish, brownish, purplish, or white. The upper lip is two-lobed, the lower lip is three-lobed. There are two long and two short stamens on slender filaments, inserted below the middle, or at the base of the corolla tube, alternating with the lobes of the tube. A fifth stamen is either sterile or lacking completely. The anthers dehisce via longitudinal slits. The pistil is one-celled. The ovary is superior. The flowers are pollinated by insects or birds (e.g. hummingbirds, as in Castilleja).


The fruit is a dehiscent, non-fleshy, 1-locular capsule with many very minute endospermic seeds. Fruits of Orobanchaceae are small and abundant and can produce between 10,000–1,000,000 seeds per plant. These are dispersed by the wind over long distances, which increases their chances of finding a new host.


Orobanchaceae is the largest of the 20–28 dicot families that express parasitism. Apart from a few non-parasitic taxa, the family displays all types of plant parasitism: facultative parasite, obligate parasite, hemiparasites, and holoparasites.


The parasitism and its different modes have been suggested to have an impact on genome evolution, with increased DNA substitution rates in parasitic organisms compared to non-parasitic taxa. For example, holoparasite taxa of Orobanchaceae exhibit faster molecular evolutionary rates than confamilial hemiparasites in three plastid genes.
In a study comparing the rates of molecular evolution of parasitic versus non parasitic taxa for 12 pairs of angiosperm families — including Apodanthaceae, Cytinaceae, Rafflesiaceae, Cynomoriaceae, Krameriaceae, Mitrastemonaceae, Boraginaceae, Orobanchaceae, Convolvulaceae, Lauraceae, Hydnoraceae, and Santalaceae/Olacaceae —, parasitic taxa evolve on average faster than their close relatives for mitochondrial, plastid, and nuclear genome sequences. Whereas Orobanchaceae fit to this trend for plastid DNA, they appear to evolve slower than their non parasitic counterpart in comparisons involving nuclear and mitochondrial DNA.


About 58% of the state has a hot humid subtropical climate. In the centre, north, and towards southwest, an arid and semi-arid climate predominate (both of these account for 38% of the state). A temperate subtropical climate is found in the extreme southwest of the state while in the extreme southeast, such as Tampico, there is a tropical savanna climate. Mean annual temperature in the state is around 23.5 °C (74.3 °F) while mean annual precipitation is 780 mm (31 in), mostly concentrated between June to September.


Tamaulipas ([tamawˈlipas] (listen)), officially the Free and Sovereign State of Tamaulipas (Spanish: Estado Libre y Soberano de Tamaulipas), is a state in the northeast region of Mexico; one of the 31 states which, along with Mexico City, comprise the 32 Federal Entities of Mexico. It is divided into 43 municipalities.
Tamaulipas is bordered by the states of  Nuevo León to the west, San Luis Potosí to the southwest, and Veracruz to the southeast. To the north, it has a 370 km (230 mi) stretch of the U.S.–Mexico border with the state of Texas, and to the east it is bordered by the Gulf of Mexico. In addition to the capital city, Ciudad Victoria, the state's largest cities include Reynosa, Matamoros, Nuevo Laredo, Tampico, and Mante.


The area known as Tamaulipas has been inhabited for at least 8,000 years. Several different cultures (north coastal, south coastal, lowlands, and mountains) have come and gone during that period.
Tamaulipas was originally populated by the nomad Chichimec and sedentary Huastec, in addition to non-Chichimec hunter-gatherer and fishing tribes.


A gradual process was needed for Spain to subjugate the inhabitants of Tamaulipas in the 16th and 17th centuries. The first permanent Spanish settlement in the area was Tampico in 1554. Further settlement was done by Franciscan missionaries; widespread cattle and sheep ranching by the Spanish bolstered the area's economy while forcing native populations from their original lands. Repeated indigenous rebellions kept the area unstable and weakened colonial interest in the region. What is now Tamaulipas was first incorporated as a separate province of New Spain in 1746 with the name Nuevo Santander. The local government capital during this time moved from Santander to San Carlos, and finally to Aguayo. The territory of this time spanned from the San Antonio River to the northeast to the Gulf of Mexico, then south to the Pánuco River near Tampico and west to the Sierra Madre Mountains. The area became a haven for rebellious Indians who fled there after increased Spanish settlements in Nuevo León and Coahuila.
In 1784 Nuevo Santander (Tamaulipas) led by Escandón, annexed San Antonio de los Llanos and its dependencies on the Purificación lagoon together with a certain number of ranches on the right bank of the Río Grande that belonged to Nuevo León. New settlements were then founded and the line of towns along the Rio Grande would later be dubbed the “villas del norte,” or northern towns (Laredo, Revilla [Guerrero], Mier, Camargo, and Reynosa) which were established as a key part of Escandón’s plan for the pacification and colonization of the province. These settlements, from Laredo to Reynosa, served as a defensive line for larger centers of population in the Mexican interior. Moreover, the villas functioned as a means to introduce Spanish “civilization” to the indigenous groups of the area. The Tamaulipas-Nuevo Leon border likely runs along old Mesquite Posts.
In the mid-17th century, various Apache bands from the Southern Plains, after acquiring horses from Europeans in New Mexico, moved southeastward into the Edwards Plateau, displacing the native hunting and gathering groups. One of these groups was known as Lipan (see Hodge 1907 Vol. I:769 for a confusing list of synonyms). After 1750, when most Apache groups of the Central Texas highlands were displaced by Comanche and moved into the coastal plain of southern Texas, the Europeans of the San Antonio area began referring to all Apache groups in southern Texas as Lipan or Lipan Apache.
Many Indian groups of missions in southern Texas and northeastern Mexico had recently been displaced from their territory through the southward push by the Lipan Apaches and were still hostile toward Apaches, linking arms with the local Spanish authorities against their common foe.
By 1790, Europeans turned their attention from the aboriginal groups and focused on containing the Apache invaders. In northeastern Coahuila and adjacent Texas, Spanish and Apache displacements created an unusual ethnic mix. Here, the local Indians mixed with displaced groups from Coahuila and Chihuahua and Texas. Some groups, to escape the pressure, combined and migrated north into the Central Texas highlands.


In 1824, after the Mexican War of Independence from Spain, and the fall of the Mexican Empire, Tamaulipas was one of the 19 founder states of the new United Mexican States. Slavery was formally abolished by the 1824 Constitution. During the fights between centralists and federalists that after independence, the successful Texas Revolution led to the creation of the Republic of Texas in 1836. The new republic claimed as part of its territory northern Tamaulipas.
In 1840, it became a part of the short-lived Republic of the Rio Grande. In 1848, after the Mexican–American War, Tamaulipas lost more than a quarter of its territory via the Treaty of Guadalupe-Hidalgo. American president James K. Polk had desired to annexe Mexican territory as far south as Tampico although his negotiator Nicholas Trist disregarded this and settled on a border with Texas on the Rio Grande. Its capital was kept at Aguayo, which later was renamed Ciudad Victoria in honor of Guadalupe Victoria, first President of Mexico.
In the wake of the war, Tamaulipas remained an object of interest to American expansionists. The climate was considered suitable for the spread of slavery by Southerners who desired the admission of new territory to shift the balance in Congress back towards the slave states. Senator Albert Gallatin Brown declared "I want Tamaulipas, Potosi, and one or two other Mexican states; and I want them all for the same reason - for the plantation and spreading of slavery". In the 1850s José María Jesús Carbajal led several incursions into Tamaulipas before being indicted for violating the Neutrality Act. Filibustering efforts were also directed towards Cuba with the Lopez Expedition, which was desired for the same reason as Tamaulipas.
The French occupation and reign of Emperor Maximilian during the 1860s was difficult for Tamaulipas, at least on the borders and in the city of Tampico. Portions of Tamaulipas supported the republican forces led by President Benito Juarez in resisting the French, especially in the north. Two years after French occupation began, Tamaulipas as a state finally acceded to Maximilian's rule, and the last French soldiers left the state in 1866, leading up to Maximilian's execution and fall of the Second Mexican Empire in 1867.
However, the years after Maximilian's defeat were ones of rebuilding and great growth in Tamaulipas. International trade began to blossom, especially with the coming of the railroad to Tampico, which was developing as not only a port city but also as an industrial and commercial center. The railroad allowed goods to flow quickly from the mines and cities of the interior and the Texas border to Tampico for processing and shipment. This, in turn, caused significant growth in towns such as Matamoros and Nuevo Laredo.
Since the revolution of 1910, successive governments have dedicated themselves to building industry and infrastructure in Tamaulipas, including communications and educational systems. Norberto Treviño Zapata founded the state university system, as well as reformed the state oil industry. Marte Gómez provided increased farm sizes for private family farmers. And more recently, Emilio Martínez Manautou led industrial growth. Lately, a push has been to strengthen fishing, including efforts to increase the price of fish and shellfish on the international market.
During the 1970s, Colombia was experiencing the Colombian Conflict, leading to the rise of illicit criminal organizations like the Cali Cartel and Medellín Cartel led by drug traffickers like Pablo Escobar and Fabio Ochoa Vásquez. In Mexico, there had already existed various illicit organizations doing drug trafficking like the Gulf Cartel, Milenio Cartel, Juaréz Cartel, Guadalajara Cartel, and a new group of vigilante drug traffickers called La Familia Michoacana. The Gulf Cartel was in charge of the State of Tamaulipas and other gulf coast states, leading to the drug trafficking rates going high in the 1990s. Around that time, a group of defectors from the Mexican Special Forces that participated in the Chiapas conflict defected as Osiel Cárdenas Guillén made them promises that they would receive better wages if they worked as the enforcer group of the Gulf Cartel called Los Zetas. They did incursions in states like Michoacán and merged La Familia Michoacana as an enforcer group from 2004 to 2006. In 2006, their crimes resulted in the Mexican drug war and Joint Operation Nuevo León-Tamaulipas.