Hostilities between the British and French resumed from 1702 to 1713, known as Queen Anne's War. The British siege of Port Royal took place in 1710, ending French-rule in peninsular Acadia. The subsequent signing of the Treaty of Utrecht in 1713 formally recognized this, while returning Cape Breton Island (Île Royale) and Prince Edward Island (Île Saint-Jean) to the French. Despite the British conquest of Acadia in 1710, Nova Scotia remained primarily occupied by Catholic Acadians and Mi'kmaq, who confined British forces to Annapolis and to Canso. Present-day New Brunswick then still formed a part of the French colony of Acadia. Immediately after the capture of Port Royal in 1710, Francis Nicholson announced it would be renamed Annapolis Royal in honour of Queen Anne.
As a result of Father Rale's War (1722–1725), the Mi'kmaq signed a series of treaties with Great Britain in 1725. The Mi'kmaq signed a treaty of "submission" to the British crown. However, conflict between the Acadians, Mi'kmaq, French, and the British persisted in the following decades with King George's War (1744–1748).
Father Le Loutre's War (1749–1755) began when Edward Cornwallis arrived to establish Halifax with 13 transports on 21 June 1749.  A General Court, made up of the governor and the council, was the highest court in the colony at the time. Jonathan Belcher was sworn in as chief justice of the Nova Scotia Supreme Court on 21 October 1754. The first legislative assembly in Halifax, under the Governorship of Charles Lawrence, met on 2 October 1758. During the French and Indian War of 1754–63 (the North American theatre of the Seven Years' War of 1756–1763), the British deported the Acadians and recruited New England Planters to resettle the colony. The 75-year period of war ended with the Halifax Treaties between the British and the Mi'kmaq (1761). After the war, some Acadians were allowed to return.
In 1763, most of Acadia (Cape Breton Island, St. John's Island (now Prince Edward Island), and New Brunswick) became part of Nova Scotia. In 1765, the county of Sunbury was created. This included the territory of present-day New Brunswick and eastern Maine as far as the Penobscot River. In 1769, St. John's Island became a separate colony.
The American Revolution (1775–1783) had a significant impact on shaping Nova Scotia. Initially, Nova Scotia—"the 14th American Colony" as some called it—displayed ambivalence over whether the colony should join the more southern colonies in their defiance of Britain, and rebellion flared at the Battle of Fort Cumberland (1776) and at the Siege of Saint John (1777). Throughout the war, American privateers devastated the maritime economy by capturing ships and looting almost every community outside of Halifax. These American raids alienated many sympathetic or neutral Nova Scotians into supporting the British. By the end of the war, Nova Scotia had outfitted a number of privateers to attack American shipping. British military forces based at Halifax succeeded in preventing American support for rebels in Nova Scotia and deterred any invasion of Nova Scotia. However the British navy failed to establish naval supremacy. While the British captured many American privateers in battles such as the Naval battle off Halifax (1782), many more continued attacks on shipping and settlements until the final months of the war. The Royal Navy struggled to maintain British supply lines, defending convoys from American and French attacks as in the fiercely fought convoy battle, the Naval battle off Cape Breton (1781).
After the Thirteen Colonies and their French allies forced the British forces to surrender (1781), approximately 33,000 Loyalists (the King's Loyal Americans, allowed to place "United Empire Loyalist" after their names) settled in Nova Scotia (14,000 of them in what became New Brunswick) on lands granted by the Crown as some compensation for their losses. (The British administration divided Nova Scotia and hived off Cape Breton and New Brunswick in 1784). The Loyalist exodus created new communities across Nova Scotia, including Shelburne, which briefly became one of the larger British settlements in North America, and infused Nova Scotia with additional capital and skills. There are also a number of Black loyalists buried in unmarked graves in the Old Burying Ground (Halifax, Nova Scotia).
However the migration also caused political tensions between Loyalist leaders and the leaders of the existing New England Planters settlement. The Loyalist influx also pushed Nova Scotia's 2000 Mi'kmaq People to the margins as Loyalist land grants encroached on ill-defined native lands. As part of the Loyalist migration, about 3,000 Black Loyalists arrived; they founded the largest free Black settlement in North America at Birchtown, near Shelburne. Many Nova Scotian communities were settled by British regiments that fought in the war.


Traditionally, archaeologists have estimated that the earliest settlers arrived in successive waves in outrigger canoes from Borneo, possibly throughout the period between 350 BC and 550 AD, while others are cautious about dates earlier than 250 AD. In either case, these dates make Madagascar one of the latest major landmasses on Earth to be settled by humans, predating the settlement of Iceland and New Zealand. It is proposed that Ma'anyan people were brought as laborers and slaves by Malay and Javanese people in their trading fleets to Madagascar. Dates earlier than the mid-first millennium AD are not strongly supported.
Upon arrival, early settlers practiced slash-and-burn agriculture to clear the coastal rainforests for cultivation. The first settlers encountered Madagascar's abundance of megafauna, including giant lemurs, elephant birds, giant fossa and the Malagasy hippopotamus, which have since become extinct because of hunting and habitat destruction. By 600 AD, groups of these early settlers had begun clearing the forests of the central highlands. Arab traders first reached the island between the 7th and 9th centuries. A wave of Bantu-speaking migrants from southeastern Africa arrived around 1000 AD. South Indian Tamil merchants arrived around 11th century. They introduced the zebu, a type of long-horned humped cattle, which they kept in large herds. Irrigated paddy fields were developed in the central highland Betsileo Kingdom and were extended with terraced paddies throughout the neighboring Kingdom of Imerina a century later. The rising intensity of land cultivation and the ever-increasing demand for zebu pasturage had largely transformed the central highlands from a forest ecosystem to grassland by the 17th century. The oral histories of the Merina people, who may have arrived in the central highlands between 600 and 1,000 years ago, describe encountering an established population they called the Vazimba. Probably the descendants of an earlier and less technologically advanced Austronesian settlement wave, the Vazimba were assimilated or expelled from the highlands by the Merina kings Andriamanelo, Ralambo and Andrianjaka in the 16th and early 17th centuries. Today, the spirits of the Vazimba are revered as tompontany (ancestral masters of the land) by many traditional Malagasy communities.


Madagascar's varied fauna and flora are endangered by human activity. Since the arrival of humans around 2,350 years ago, Madagascar has lost more than 90 percent of its original forest. This forest loss is largely fueled by tavy ("fat"), a traditional slash-and-burn agricultural practice imported to Madagascar by the earliest settlers. Malagasy farmers embrace and perpetuate the practice not only for its practical benefits as an agricultural technique, but for its cultural associations with prosperity, health and venerated ancestral custom (fomba malagasy). As human population density rose on the island, deforestation accelerated beginning around 1,400 years ago. By the 16th century, the central highlands had been largely cleared of their original forests. More recent contributors to the loss of forest cover include the growth in cattle herd size since their introduction around 1,000 years ago, a continued reliance on charcoal as a fuel for cooking, and the increased prominence of coffee as a cash crop over the past century. Madagascar had a 2019 Forest Landscape Integrity Index mean score of 4.63/10, ranking it 119th globally out of 172 countries.
According to a conservative estimate, about 40 percent of the island's original forest cover was lost from the 1950s to 2000, with a thinning of remaining forest areas by 80 percent. In addition to traditional agricultural practice, wildlife conservation is challenged by the illicit harvesting of protected forests, as well as the state-sanctioned harvesting of precious woods within national parks. Although banned by then-President Marc Ravalomanana from 2000 to 2009, the collection of small quantities of precious timber from national parks was re-authorized in January 2009 and dramatically intensified under the administration of Andry Rajoelina as a key source of state revenues to offset cuts in donor support following Ravalomanana's ousting.
Invasive species have likewise been introduced by human populations. Following the 2014 discovery in Madagascar of the Asian common toad, a relative of a toad species that has severely harmed wildlife in Australia since the 1930s, researchers warned the toad could "wreak havoc on the country's unique fauna." Habitat destruction and hunting have threatened many of Madagascar's endemic species or driven them to extinction. The island's elephant birds, a family of endemic giant ratites, became extinct in the 17th century or earlier, most probably because of human hunting of adult birds and poaching of their large eggs for food. Numerous giant lemur species vanished with the arrival of human settlers to the island, while others became extinct over the course of the centuries as a growing human population put greater pressures on lemur habitats and, among some populations, increased the rate of lemur hunting for food. A July 2012 assessment found that the exploitation of natural resources since 2009 has had dire consequences for the island's wildlife: 90 percent of lemur species were found to be threatened with extinction, the highest proportion of any mammalian group. Of these, 23 species were classified as critically endangered. By contrast, a previous study in 2008 had found only 38 percent of lemur species were at risk of extinction.
In 2003, Ravalomanana announced the Durban Vision, an initiative to more than triple the island's protected natural areas to over 60,000 km² (23,000 sq mi) or 10 percent of Madagascar's land surface. As of 2011, areas protected by the state included five Strict Nature Reserves (Réserves Naturelles Intégrales), 21 Wildlife Reserves (Réserves Spéciales) and 21 National Parks (Parcs Nationaux). In 2007 six of the national parks were declared a joint World Heritage Site under the name Rainforests of the Atsinanana. These parks are Marojejy, Masoala, Ranomafana, Zahamena, Andohahela and Andringitra. Local timber merchants are harvesting scarce species of rosewood trees from protected rainforests within Marojejy National Park and exporting the wood to China for the production of luxury furniture and musical instruments. To raise public awareness of Madagascar's environmental challenges, the Wildlife Conservation Society opened an exhibit entitled "Madagascar!" in June 2008 at the Bronx Zoo in New York.
Mid-2021 marked the beginning of the 2021–2022 Madagascar famine which, due to a severe drought, caused hundreds of thousands of people to face food insecurity and over one million people were on the verge of a famine.
An 2022 analysis found that the expected costs for Madagascar, to adapting to and avert the environmental consequences of climate change, are going to be high.


In the Malagasy language, the island of Madagascar is called Madagasikara ([madaɡasʲˈkʲarə̥]) and its people are referred to as Malagasy. The island's appellation "Madagascar" is not of local origin but rather was popularized in the Middle Ages by Europeans. The name Madageiscar was first recorded in the memoirs of 13th-century Venetian explorer Marco Polo as a corrupted transliteration of the name Mogadishu, the Somali port with which Marco Polo had confused the island.
On St. Laurence's Day in 1500, Portuguese explorer Diogo Dias landed on the island and named it São Lourenço. Marco Polo's name was preferred and popularized on Renaissance maps. No single Malagasy-language name predating Madagasikara appears to have been used by the local population to refer to the island, although some communities had their own name for part or all of the land they inhabited.


At 592,800 square kilometres (228,900 sq mi), Madagascar is the world's 47th largest country, the 2nd largest island country and the fourth-largest island. The country lies mostly between latitudes 12°S and 26°S, and longitudes 43°E and 51°E. Neighboring islands include the French territory of Réunion and the country of Mauritius to the east, as well as the state of Comoros and the French territory of Mayotte to the north west. The nearest mainland state is Mozambique, located to the west.

The prehistoric breakup of the supercontinent Gondwana resulted in the separation of East Gondwana (comprising Madagascar, Antarctica, Australia and the Indian subcontinent) and West Gondwana (Africa–South America) during the Jurassic period, around 185 million years ago. The Indo-Madagascar landmass separated from Antarctica and Australia around 125 million years ago and Madagascar separated from the Indian landmass about 88 million years ago during the Late Cretaceous. This long history of separation from other continents has allowed plants and animals on the island to evolve in relative isolation.
Along the length of the eastern coast runs a narrow and steep escarpment containing much of the island's remaining tropical lowland forest. To the west of this ridge lies a plateau in the center of the island ranging in altitude from 750 to 1,500 m (2,460 to 4,920 ft) above sea level. These central highlands, traditionally the homeland of the Merina people and the location of their historic capital at Antananarivo, are the most densely populated part of the island and are characterized by terraced, rice-growing valleys lying between grassy hills and patches of the subhumid forests that formerly covered the highland region. To the west of the highlands, the increasingly arid terrain gradually slopes down to the Mozambique Channel and mangrove swamps along the coast.
Madagascar's highest peaks rise from three prominent highland massifs: Maromokotro 2,876 m (9,436 ft) in the Tsaratanana Massif is the island's highest point, followed by Boby Peak 2,658 m (8,720 ft) in the Andringitra Massif, and Tsiafajavona 2,643 m (8,671 ft) in the Ankaratra Massif. To the east, the Canal des Pangalanes is a chain of human-made and natural lakes connected by canals built by the French just inland from the east coast and running parallel to it for some 600 km (370 mi).
The western and southern sides, which lie in the rain shadow of the central highlands, are home to dry deciduous forests, spiny forests, and deserts and xeric shrublands. Due to their lower population densities, Madagascar's dry deciduous forests have been better preserved than the eastern rain forests or the original woodlands of the central plateau. The western coast features many protected harbors, but silting is a major problem caused by sediment from the high levels of inland erosion carried by rivers crossing the broad western plains.


As the result of the island's long isolation from neighboring continents, Madagascar is home to various endemic plants and animals found nowhere else on Earth. Approximately 90% of all plant and animal species found in Madagascar are endemic. This distinctive ecology has led some ecologists to refer to Madagascar as the "eighth continent", and the island has been classified by Conservation International as a biodiversity hotspot. Madagascar is classed as one of 17 megadiverse countries. The country is home to seven terrestrial ecoregions: Madagascar lowland forests, Madagascar subhumid forests, Madagascar dry deciduous forests, Madagascar ericoid thickets, Madagascar spiny forests, Madagascar succulent woodlands, and Madagascar mangroves.
More than 80 percent of Madagascar's 14,883 plant species are found nowhere else in the world, including five plant families. The family Didiereaceae, composed of four genera and 11 species, is limited to the spiny forests of southwestern Madagascar. Four-fifths of the world's Pachypodium species are endemic to the island. Three-fourths of Madagascar's 860 orchid species are found here alone, as are six of the world's nine baobab species. The island is home to around 170 palm species, three times as many as on all of mainland Africa; 165 of them are endemic. Many native plant species are used as herbal remedies for a variety of afflictions. The drugs vinblastine and vincristine are vinca alkaloids, used to treat Hodgkin lymphoma, leukemia, and other cancers, were derived from the Madagascar periwinkle. The traveler's palm, known locally as ravinala and endemic to the eastern rain forests, is highly iconic of Madagascar and is featured in the national emblem as well as the Air Madagascar logo.
Like its flora, Madagascar's fauna is diverse and exhibits a high rate of endemism. Lemurs have been characterized as "Madagascar's flagship mammal species" by Conservation International. In the absence of monkeys and other competitors, these primates have adapted to a wide range of habitats and diversified into numerous species. As of 2012, there were officially 103 species and subspecies of lemur, 39 of which were described by zoologists between 2000 and 2008. They are almost all classified as rare, vulnerable, or endangered. At least 17 species of lemur have become extinct since humans arrived on Madagascar, all of which were larger than the surviving lemur species.
A number of other mammals, including the catlike fossa, are endemic to Madagascar. Over 300 species of birds have been recorded on the island, of which over 60 percent (including four families and 42 genera) are endemic. The few families and genera of reptiles that have reached Madagascar have diversified into more than 260 species, with over 90 percent of these being endemic (including one endemic family). The island is home to two-thirds of the world's chameleon species, including the smallest known, and researchers have proposed that Madagascar may be the origin of all chameleons.
Endemic fish of Madagascar include two families, 15 genera and over 100 species, primarily inhabiting the island's freshwater lakes and rivers. Although invertebrates remain poorly studied in Madagascar, researchers have found high rates of endemism among the known species. All 651 species of terrestrial snail are endemic, as are a majority of the island's butterflies, scarab beetles, lacewings, spiders, and dragonflies.


The Republic of Madagascar (Malagasy: Repoblikan'i Madagasikara, [republiˈkʲan madaɡasˈkʲarə̥]; French: République de Madagascar), or Madagascar (/ˌmædəˈɡæskər, -kɑːr/; Malagasy: Madagasikara) (and previously known as the Malagasy Republic), is an island country in the Indian Ocean, approximately 400 kilometres (250 miles) off the coast of East Africa across the Mozambique Channel. At 592,800 square kilometres (228,900 sq mi) Madagascar is the world's second-largest country that consists primarily of islands, after Indonesia. The nation consists of the island of Madagascar (the fourth-largest island in the world) and numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian subcontinent around 88 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of its wildlife is endemic.
Human settlement of Madagascar occurred during or before the mid first millennium AD by Austronesian peoples, presumably arriving on outrigger canoes from present-day Indonesia. These were joined around the 9th century AD by Bantu migrants crossing the Mozambique Channel from East Africa. Other groups continued to settle on Madagascar over time, each one making lasting contributions to Malagasy cultural life. The Malagasy ethnic group is often divided into 18 or more subgroups, of which the largest are the Merina of the central highlands.
Until the late 18th century, the island of Madagascar was ruled by a fragmented assortment of shifting sociopolitical alliances. Beginning in the early 19th century, most of the island was united and ruled as the Kingdom of Madagascar by a series of Merina nobles. The monarchy ended in 1897 when the island was absorbed into the French colonial empire, from which the island gained independence in 1960. The autonomous state of Madagascar has since undergone four major constitutional periods, termed republics. Since 1992, the nation has officially been governed as a constitutional democracy from its capital at Antananarivo. However, in a 2009 political crisis, president Marc Ravalomanana was made to resign and presidential power was transferred in March 2009 to Andry Rajoelina. Constitutional governance was restored in January 2014, when Hery Rajaonarimampianina was named president following a 2013 election deemed fair and transparent by the international community. Madagascar is a member of the United Nations, the African Union (AU), the Southern African Development Community (SADC), and the Organisation Internationale de la Francophonie.
Madagascar belongs to the group of least developed countries, according to the United Nations. Malagasy and French are both official languages of the state. The majority of the population adheres to Christianity, traditional beliefs, or an amalgamation of the two. Ecotourism and agriculture, paired with greater investments in education, health, and private enterprise, are key elements of Madagascar's development strategy. Under Ravalomanana, these investments produced substantial economic growth, but the benefits were not evenly spread throughout the population, producing tensions over the increasing cost of living and declining living standards among the poor and some segments of the middle class. As of 2017, the economy has been weakened by the 2009–2013 political crisis, and quality of life remains low for the majority of the Malagasy population.


The dry lands of Namibia have been inhabited since prehistoric times by the San, Damara, and Nama. Around the 14th century, immigrating Bantu people began to arrive during the Bantu expansion from central Africa.
From the late 18th century onward, Oorlam people from Cape Colony crossed the Orange River and moved into the area that today is southern Namibia. Their encounters with the nomadic Nama tribes were largely peaceful. They received the missionaries accompanying the Oorlam very well, granting them the right to use waterholes and grazing against an annual payment. On their way further north, however, the Oorlam encountered clans of the OvaHerero at Windhoek, Gobabis, and Okahandja, who resisted their encroachment. The Nama-Herero War broke out in 1880, with hostilities ebbing only after the German Empire deployed troops to the contested places and cemented the status quo among the Nama, Oorlam, and Herero.
In 1878, the Cape of Good Hope, then a British colony, annexed the port of Walvis Bay and the offshore Penguin Islands; these became an integral part of the new Union of South Africa at its creation in 1910.
The first Europeans to disembark and explore the region were the Portuguese navigators Diogo Cão in 1485 and Bartolomeu Dias in 1486, but the Portuguese did not try to claim the area. Like most of the interior of Sub-Saharan Africa, Namibia was not extensively explored by Europeans until the 19th century. At that time traders and settlers came principally from Germany and Sweden. In the late 19th century, Dorsland Trekkers crossed the area on their way from the Transvaal to Angola. Some of them settled in Namibia instead of continuing their journey.


The name of the country is derived from the Namib desert, the oldest desert in the world. The name Namib itself is of Nama origin and means "vast place". That word for the country was chosen by Mburumba Kerina, who originally proposed the name the "Republic of Namib". Before its independence in 1990, the area was known first as German South-West Africa (Deutsch-Südwestafrika), then as South-West Africa, reflecting the colonial occupation by the Germans and South Africans.


As SWAPO's insurgency intensified, South Africa's case for annexation in the international community continued to decline. The UN declared that South Africa had failed in its obligations to ensure the moral and material well-being of South West Africa's indigenous inhabitants, and had thus disavowed its own mandate. On 12 June 1968, the UN General Assembly adopted a resolution proclaiming that, in accordance with the desires of its people, South West Africa be renamed Namibia. United Nations Security Council Resolution 269, adopted in August 1969, declared South Africa's continued occupation of Namibia illegal. In recognition of this landmark decision, SWAPO's armed wing was renamed the People's Liberation Army of Namibia (PLAN).
Namibia became one of several flashpoints for Cold War proxy conflicts in southern Africa during the latter years of the PLAN insurgency. The insurgents sought out weapons and sent recruits to the Soviet Union for military training. As the PLAN war effort gained momentum, the Soviet Union and other sympathetic states such as Cuba continued to increase their support, deploying advisers to train the insurgents directly as well as supplying more weapons and ammunition. SWAPO's leadership, dependent on Soviet, Angolan, and Cuban military aid, positioned the movement firmly within the socialist bloc by 1975. This practical alliance reinforced the prevailing perspective of SWAPO as a Soviet proxy, which dominated Cold War ideology in South Africa and the United States. For its part, the Soviet Union supported SWAPO partly because it viewed South Africa as a regional Western ally.
Growing war weariness and the reduction of tensions between the superpowers compelled South Africa, Angola, and Cuba to accede to the Tripartite Accord, under pressure from both the Soviet Union and the United States. South Africa accepted Namibian independence in exchange for Cuban military withdrawal from the region and an Angolan commitment to cease all aid to PLAN. PLAN and South Africa adopted an informal ceasefire in August 1988, and a United Nations Transition Assistance Group (UNTAG) was formed to monitor the Namibian peace process and supervise the return of refugees. The ceasefire was broken after PLAN made a final incursion into the territory, possibly as a result of misunderstanding UNTAG's directives, in March 1989. A new ceasefire was later imposed with the condition that the insurgents were to be confined to their external bases in Angola until they could be disarmed and demobilised by UNTAG.
By the end of the 11-month transition period, the last South African troops had been withdrawn from Namibia, all political prisoners granted amnesty, racially discriminatory legislation repealed, and 42,000 Namibian refugees returned to their homes. Just over 97% of eligible voters participated in the country's first parliamentary elections held under a universal franchise. The United Nations plan included oversight by foreign election observers in an effort to ensure a free and fair election. SWAPO won a plurality of seats in the Constituent Assembly with 57% of the popular vote. This gave the party 41 seats, but not a two-thirds majority, which would have enabled it to draft the constitution on its own.
The Namibian Constitution was adopted in February 1990. It incorporated protection for human rights and compensation for state expropriations of private property and established an independent judiciary, legislature, and an executive presidency (the constituent assembly became the national assembly). The country officially became independent on 21 March 1990. Sam Nujoma was sworn in as the first President of Namibia at a ceremony attended by Nelson Mandela of South Africa (who had been released from prison the previous month) and representatives from 147 countries, including 20 heads of state. In 1994, following the first multiracial elections in South Africa, that country ceded Walvis Bay to Namibia.


Namibia (/nəˈmɪbiə/ (listen), /næˈ-/), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and east. Although it does not border Zimbabwe, less than 200 metres (660 feet) of the Botswanan right bank of the Zambezi River separates the two countries. Namibia gained independence from South Africa on 21 March 1990, following the Namibian War of Independence. Its capital and largest city is Windhoek. Namibia is a member state of the United Nations (UN), the Southern African Development Community (SADC), the African Union (AU) and the Commonwealth of Nations.
The driest country in sub-Saharan Africa, Namibia has been inhabited since pre-historic times by the San, Damara and Nama people. Around the 14th century, immigrating Bantu peoples arrived as part of the Bantu expansion. Since then, the Bantu groups, the largest being the Ovambo, have dominated the population of the country; since the late 19th century, they have constituted a majority. Today Namibia is one of the least densely populated countries in the world.
It has a population of 2.55 million people and is a stable multi-party parliamentary democracy. Agriculture, tourism and the mining industry – including mining for gem diamonds, uranium, gold, silver and base metals – form the basis of its economy, while the manufacturing sector is comparatively small.
In 1884, the German Empire established rule over most of the territory, forming a colony known as German South West Africa. Between 1904 and 1908, it perpetrated a genocide against the Herero and Nama people. German rule ended in 1915 with a defeat by South African forces. In 1920, after the end of World War I, the League of Nations mandated administration of the colony to South Africa. As mandatory power, South Africa imposed its laws, including racial classifications and rules. From 1948, with the National Party elected to power, this included South Africa applying apartheid to what was then known as South West Africa. In the later 20th century, uprisings and demands for political representation by native African political activists seeking independence resulted in the UN assuming direct responsibility over the territory in 1966, but South Africa maintained de facto rule. In 1973, the UN recognised the South West Africa People's Organisation (SWAPO) as the official representative of the Namibian people. Following continued guerrilla warfare, Namibia obtained independence in 1990. However, Walvis Bay and the Penguin Islands remained under South African control until 1994.


The first inhabitants of present-day Kenya were hunter-gatherer groups, akin to the modern Khoisan speakers. These people were later largely replaced by agropastoralist Cushitic (ancestral to Kenya's Cushitic speakers) from the Horn of Africa. During the early Holocene, the regional climate shifted from dry to wetter conditions, providing an opportunity for the development of cultural traditions such as agriculture and herding, in a more favourable environment.
Around 500 BC, Nilotic-speaking pastoralists (ancestral to Kenya's Nilotic speakers) started migrating from present-day southern Sudan into Kenya. Nilotic groups in Kenya include the Kalenjin, Samburu, Luo, Turkana, and Maasai.
By the first millennium AD, Bantu-speaking farmers had moved into the region, initially along the coast. The Bantus originated in West Africa along the Benue River in what is now eastern Nigeria and western Cameroon. The Bantu migration brought new developments in agriculture and ironworking to the region. Bantu groups in Kenya include the Kikuyu, Luhya, Kamba, Kisii, Meru, Kuria, Aembu, Ambeere, Wadawida-Watuweta, Wapokomo, and Mijikenda, among others.
Notable prehistoric sites in the interior of Kenya include the (possibly archaeoastronomical) site Namoratunga on the west side of Lake Turkana and the walled settlement of Thimlich Ohinga in Migori County.


During the 18th and 19th century C.E, the Masai people moved into what is now modern-day central Kenya, from a region north of Lake Rudolf (now Lake Turkana). Although there were not many, they managed to conquer a great amount of Bantu-speaking peoples, who did not put up much resistance. The Nandi peoples managed to oppose the Masai, while the Taveta peoples fled to the forests on the eastern edge of Mount Kilimanjaro, along with the Kikuyu peoples, although they later were forced to leave the land due to the threat of smallpox. An outbreak of either rinderpest or pleuropneumonia greatly affected the Masai's cattle, while an epidemic of smallpox affected the Masai themselves. After the death of the Masai Mbatian, the chief laibon (medicine man), the Masai split into warring factions. There was much strife between the Nilotic (Masai) and Bantu peoples; however, cooperation btween such groups as the Luo people, Luhya people, and Gusii people is evinced by shared vocabulary for modern implements and similar economic regimes. Although Arab traders remained in the area, trade routes were disrupted by the hostile Masai, though there was trade in ivory between these factions. The first foreigners to successfully get past the Masai were Johann Ludwig Krapf and Johannes Rebmann, two German missionaries who established a mission in Rabai, not too far from Mombasa. The pair were the first Europeans to sight Mount Kenya.


The Kenyan coast had served host to communities of ironworkers and Bantu subsistence farmers, hunters, and fishers who supported the economy with agriculture, fishing, metal production, and trade with foreign countries. These communities formed the earliest city-states in the region, which were collectively known as Azania.
By the 1st century CE, many of the city-states such as Mombasa, Malindi, and Zanzibar began to establish trading relations with Arabs. This led to increased economic growth of the Swahili states, the introduction of Islam, Arabic influences on the Swahili Bantu language, cultural diffusion, as well as the Swahili city-states becoming members of a larger trade network. Many historians had long believed that the city-states were established by Arab or Persian traders, but archaeological evidence has led scholars to recognise the city-states as an indigenous development which, though subjected to foreign influence due to trade, retained a Bantu cultural core.
The Kilwa Sultanate was a medieval sultanate centred at Kilwa, in modern-day Tanzania. At its height, its authority stretched over the entire length of the Swahili Coast, including Kenya. It was said to be founded in the 10th century by Ali ibn al-Hassan Shirazi, a Persian Sultan from Shiraz in southern Iran. However, scholars have suggested that claims of Arab or Persian origin of city-states were attempts by the Swahili to legitimise themselves both locally and internationally. Since the 10th century, rulers of Kilwa would go on to build elaborate coral mosques and introduce copper coinage.
Swahili, a Bantu language with Arabic, Persian, and other Middle-Eastern and South Asian loanwords, later developed as a lingua franca for trade between the different peoples. Since the turn into the 20th century, Swahili has adopted numerous loanwords and calques from English, many of them originating during English colonial rule.


Fossils found in Kenya have shown that primates inhabited the area for more than 20 million years. Recent findings near Lake Turkana indicate that hominids such as Homo habilis (1.8 to 2.5 million years ago) and Homo erectus (1.9 million to 350,000 years ago) are possible direct ancestors of modern Homo sapiens, and lived in Kenya in the Pleistocene epoch.
During excavations at Lake Turkana in 1984, paleoanthropologist Richard Leakey, assisted by Kamoya Kimeu, discovered the Turkana Boy, a 1.6-million-year-old Homo erectus fossil. Previous research on early hominids is particularly identified with Mary Leakey and Louis Leakey, who were responsible for the preliminary archaeological research at Olorgesailie and Hyrax Hill. Later work at the former site was undertaken by Glynn Isaac.
East Africa, including Kenya, is one of the earliest regions where modern humans (Homo sapiens) are believed to have lived. Evidence was found in 2018, dating to about 320,000 years ago, at the Kenyan site of Olorgesailie, of the early emergence of modern behaviours, including long-distance trade networks (involving goods such as obsidian), the use of pigments, and the possible making of projectile points. The authors of three 2018 studies on the site observed that the evidence of these behaviours is approximately contemporary to the earliest known Homo sapiens fossil remains (such as at Jebel Irhoud in Morocco and Florisbad in South Africa), and they suggest that complex and modern behaviours had already begun in Africa around the time of the emergence of Homo sapiens.


At 947,303 square kilometres (365,756 sq mi), Tanzania is the 13th largest country in Africa and the 31st largest in the world, ranked between the larger Egypt and smaller Nigeria. It borders Kenya and Uganda to the north; Rwanda, Burundi, and the Democratic Republic of the Congo to the west; and Zambia, Malawi, and Mozambique to the south. Tanzania is located on the eastern coast of Africa and has an Indian Ocean coastline approximately 1,424 kilometres (885 mi) long. It also incorporates several offshore islands, including Unguja (Zanzibar), Pemba, and Mafia. The country is the site of Africa's highest and lowest points: Mount Kilimanjaro, at 5,895 metres (19,341 ft) above sea level, and the floor of Lake Tanganyika, at 1,471 metres (4,826 ft) below sea level, respectively.
Tanzania is mountainous and densely forested in the northeast, where Mount Kilimanjaro is located. Three of Africa's Great Lakes are partly within Tanzania. To the north and west lie Lake Victoria, Africa's largest lake, and Lake Tanganyika, the continent's deepest lake, known for its unique species of fish. To the southwest lies Lake Nyasa. Central Tanzania is a large plateau, with plains and arable land. The eastern shore is hot and humid, with the Zanzibar Archipelago just offshore.
Kalambo Falls in the southwestern region of Rukwa is the second highest uninterrupted waterfall in Africa, and is located near the southeastern shore of Lake Tanganyika on the border with Zambia. The Menai Bay Conservation Area is Zanzibar's largest marine protected area.


Bantu-speakers built farming and trade villages along the Tanzanian coast from the outset of the first millennium. Archaeological finds at Fukuchani, on the north-west coast of Zanzibar, indicate a settled agricultural and fishing community from the 6th century CE at the latest. The considerable amount of daub found indicates timber buildings, and shell beads, bead grinders, and iron slag have been found at the site. There is evidence for limited engagement in long-distance trade: a small amount of imported pottery has been found, less than 1% of total pottery finds, mostly from the Gulf and dated to the 5th to 8th century. The similarity to contemporary sites such as Mkokotoni and Dar es Salaam indicate a unified group of communities that developed into the first centre of coastal maritime culture. The coastal towns appear to have been engaged in Indian Ocean and inland African trade at this early period. Trade rapidly increased in importance and quantity beginning in the mid-8th century and by the close of the 10th century Zanzibar was one of the central Swahili trading towns.
Growth in Egyptian and Persian shipping from the Red Sea and the Persian Gulf revitalised Indian Ocean trade, particularly after the Fatimid Caliphate relocated to Fustat (Cairo). Swahili agriculturalists built increasingly dense settlements to tap into trade, these forming the earliest Swahili city-states. The Venda-Shona Kingdoms of Mapungubwe and Zimbabwe in South Africa and Zimbabwe, respectively, became a major producer of gold around this same period. Economic, social, and religious power was increasingly vested in Kilwa, Tanzania's major medieval city-state. Kilwa controlled a number of smaller ports stretching down to modern-day Mozambique. Sofala became the major gold emporium and Kilwa grew rich off the trade, lying at the southern end of the Indian Ocean Monsoons. Kilwa's major rivals lay to the north, in modern-day Kenya, namely Mombasa and Malindi. Kilwa remained the major power in East Africa until the arrival of the Portuguese at the end of the 15th century.


British rule came to an end on 9 December 1961. Elizabeth II, who had acceded to the British throne in 1952, continued to reign through the first year of Tanganyika's independence, but now distinctly as Queen of Tanganyika, represented by the governor general. Tanganyika also joined the British Commonwealth in 1961. On 9 December 1962, Tanganyika became a democratic republic under an executive president.
After the Zanzibar Revolution overthrew the Arab dynasty in neighbouring Zanzibar, accompanied with the slaughter of thousands of Arab Zanzibaris, which had become independent in 1963, the archipelago merged with mainland Tanganyika on 26 April 1964. The new country was then named the United Republic of Tanganyika and Zanzibar. On 29 October of the same year, the country was renamed the United Republic of Tanzania ("Tan" comes from Tanganyika and "Zan" from Zanzibar). The union of the two hitherto separate regions was controversial among many Zanzibaris (even those sympathetic to the revolution) but was accepted by both the Nyerere government and the Revolutionary Government of Zanzibar owing to shared political values and goals.
Following Tanganyika's independence and unification with Zanzibar leading to the state of Tanzania, President Nyerere emphasised a need to construct a national identity for the citizens of the new country. To achieve this, Nyerere provided what is regarded as one of the most successful cases of ethnic repression and identity transformation in Africa. With over 130 languages spoken within its territory, Tanzania is one of the most ethnically diverse countries in Africa. Despite this obstacle, ethnic divisions remained rare in Tanzania when compared to the rest of the continent, notably its immediate neighbour, Kenya. Furthermore, since its independence, Tanzania has displayed more political stability than most African countries, particularly due to Nyerere's ethnic repression methods.
In 1967, Nyerere's first presidency took a turn to the left after the Arusha Declaration, which codified a commitment to socialism as well as Pan-Africanism. After the declaration, banks and many large industries were nationalised.
Tanzania was also aligned with China, which from 1970 to 1975 financed and helped build the 1,860-kilometre-long (1,160 mi) TAZARA Railway from Dar es Salaam to Zambia. Nonetheless, from the late 1970s, Tanzania's economy took a turn for the worse, in the context of an international economic crisis affecting both developed and developing economies.
In 1978, the neighboring Uganda, under the leadership of Idi Amin, invaded Tanzania. This disastrous invasion would culminate in Tanzania invading Uganda with the aid of Ugandan rebels and deposing Idi Amin as a result. However, the war severely damaged Tanzania's economy.
Through the 1980s, conservation oriented national parks such as Serengeti and Kilimanjaro, with Mount Kilimanjaro as the tallest freestanding summit on Earth, were included on the UNESCO World Heritage List.
From the mid-1980s, the regime financed itself by borrowing from the International Monetary Fund and underwent some reforms. Since then, Tanzania's gross domestic product per capita has grown and poverty has been reduced, according to a report by the World Bank.
In 1992, the Constitution of Tanzania was amended to allow multiple political parties. In Tanzania's first multi-party elections, held in 1995, the ruling Chama Cha Mapinduzi won 186 of the 232 elected seats in the National Assembly, and Benjamin Mkapa was elected as president.
The presidents of Tanzania since Independence have been Julius Nyerere	1962–1985, Ali Hassan Mwinyi 1985–1995, Benjamin Mkapa	1995–2005 Jakaya Kikwete 2005–2015 John Magufuli 2015–2021 and Samia Hassan Suluhu since 2021. After the long tenure of president Nyerere, the Constitution has a term limit, a president can serve a maximum of two terms. Each term is five years. Every president has represented the ruling party Chama cha Mapinduzi (CCM). President Magufuli won a landslide victory and re-election in October 2020. According to the opposition, the election was full of fraud and irregularities.
On 17 March 2021, President John Magufuli died from heart complications whilst in office. Magufuli's vice president, Samia Suluhu Hassan, became Tanzania's first female president.


Climate varies greatly within Tanzania. In the highlands, temperatures range between 10 and 20 °C (50 and 68 °F) during cold and hot seasons respectively. The rest of the country has temperatures rarely falling lower than 20 °C (68 °F). The hottest period extends between November and February (25–31 °C or 77.0–87.8 °F) while the coldest period occurs between May and August (15–20 °C or 59–68 °F). Annual temperature is 20 °C (68.0 °F). The climate is cool in high mountainous regions.
Tanzania has two major rainfall periods: one is uni-modal (October–April) and the other is bi-modal (October–December and March–May). The former is experienced in southern, central, and western parts of the country, and the latter is found in the north from Lake Victoria extending east to the coast. The bi-modal rainfall is caused by the seasonal migration of the Intertropical Convergence Zone.
Climate change in Tanzania is resulting in rising temperatures with a higher likelihood of intense rainfall events (resulting in flooding) and of dry spells (resulting in droughts). Climate change is already impacting the sectors in Tanzania of agriculture, water resources, health and energy. Sea level rise and changes in the quality of water are expected to impact fisheries and aquaculture.
Tanzania produced a National Adaptation Programmes of Action (NAPAs) in 2007 as mandated by the United Nations Framework Convention on Climate Change. In 2012, Tanzania produced a National Climate Change Strategy in response to the growing concern of the negative impacts of climate change and climate variability on the country's social, economic and physical environment.


Tanzania is one of the oldest continuously inhabited areas on Earth. Traces of fossil remains of humans and hominids date back to the Quaternary era. The Olduvai Gorge, in the Ngorongoro Conservation Area, a UNESCO World Heritage Site, features a collection with remnants of tools that document the development and use of transitional technology.
The indigenous populations of eastern Africa are thought to be the linguistically isolated Hadza and Sandawe hunter-gatherers of Tanzania.
The first wave of migration was by Southern Cushitic speakers who moved south from Ethiopia and Somalia into Tanzania. They are ancestral to the Iraqw, Gorowa, and Burunge. Based on linguistic evidence, there may also have been two movements into Tanzania of Eastern Cushitic people at about 4,000 and 2,000 years ago, originating from north of Lake Turkana.
Archaeological evidence supports the conclusion that Southern Nilotes, including the Datoog, moved south from the present-day South Sudan / Ethiopia border region into central northern Tanzania between 2,900 and 2,400 years ago.
These movements took place at approximately the same time as the settlement of the iron-making Mashariki Bantu from West Africa in the Lake Victoria and Lake Tanganyika areas. They brought with them the west African planting tradition and the primary staple of yams. They subsequently migrated out of these regions across the rest of Tanzania between 2,300 and 1,700 years ago.
Eastern Nilotic peoples, including the Maasai, represent a more recent migration from present-day South Sudan within the past 500 to 1,500 years.
The people of Tanzania have been associated with the production of iron and steel. The Pare people were the main producers of sought-after iron for peoples who occupied the mountain regions of north-eastern Tanzania. The Haya people on the western shores of Lake Victoria invented a type of high-heat blast furnace, which allowed them to forge carbon steel at temperatures exceeding 1,820 °C (3,310 °F) more than 1,500 years ago.
Travellers and merchants from the Persian Gulf and India have visited the east African coast since early in the first millennium AD. Islam was practised by some on the Swahili Coast as early as the eighth or ninth century A.D.


Shorebirds, like many other animals, exhibit phenotypic differences between males and females, also known as sexual dimorphism. In shorebirds, various sexual dimorphisms are seen, including, but not limited to, size (e.g. body size, bill size), color, and agility. In polygynous species, where one male individual mates with multiple female partners over his lifetime, dimorphisms tend to be more diverse. In monogamous species, where male individuals mate with a single female partner, males typically do not have distinctive dimorphic characteristics such as colored feathers, but they still tend to be larger in size compared to females. The suborder Charadrii displays the widest range of sexual dimorphisms seen in the order Charadriiformes. However, cases of sexual monomorphism, where there are no distinguishing physical features besides external genitalia, are also seen in this order.


Shorebirds is a blanket term used to refer to multiple bird species that live in wet, coastal environments. Because most these species spend much of their time near bodies of water, many have long legs suitable for wading (hence the name ‘Waders’). Some species prefer locations with rocks or mud. Many shorebirds display migratory patterns and often migrate before breeding season. These behaviors explain the long wing lengths observed in species, and can also account for the efficient metabolisms that give the birds energy during long migrations.
The majority of species eat small invertebrates picked out of mud or exposed soil. Different lengths of bills enable different species to feed in the same habitat, particularly on the coast, without direct competition for food. Many waders have sensitive nerve endings at the end of their bills which enable them to detect prey items hidden in mud or soft soil. Some larger species, particularly those adapted to drier habitats will take larger prey including insects and small reptiles.


In the Sibley-Ahlquist taxonomy, waders and many other groups are subsumed into a greatly enlarged order Ciconiiformes. However, the classification of the Charadriiformes is one of the weakest points of the Sibley-Ahlquist taxonomy, as DNA–DNA hybridization has turned out to be incapable of properly resolving the interrelationships of the group. Formerly, the waders were united in a single suborder Charadrii, but this has turned out to be a "wastebasket taxon", uniting no fewer than four charadriiform lineages in a paraphyletic assemblage. However, it indicated that the plains wanderer actually belonged into one of them. Following recent studies (Ericson et al., 2003; Paton et al., 2003; Thomas et al., 2004a, b; van Tuinen et al., 2004; Paton & Baker, 2006), the waders may be more accurately subdivided.
The waders are a group of two Charadriiformes suborders which include 13 families. Species in the third Charadriiforme suborder, Lari, are not considered as waders.
Suborder Charadrii
Family Burhinidae – stone-curlews, thick-knees (10 species)
Family Pluvianellidae – Magellanic plover
Family Chionidae – sheathbills (2 species)
Family Pluvianidae – Egyptian plover
Family Charadriidae – plovers (68 species)
Family Recurvirostridae – stilts, avocets (10 species)
Family Ibidorhynchidae – ibisbill
Family Haematopodidae – oystercatchers (12 species)
Suborder Scolopaci
Family Rostratulidae – painted-snipes (3 species)
Family Jacanidae – jacanas (8 species)
Family Pedionomidae – plains-wanderer
Family Thinocoridae – seedsnipes (4 species)
Family Scolopacidae – sandpipers, snipes (98 species)
Suborder Lari
Family Turnicidae
Family Dromadidae
Family Glareolidae


Currently, Amaranthaceae and Caryophyllaceae are sister groups and considered closely related.
Formerly, Caryophyllaceae were considered the sister family to all of the remaining members of the suborder Caryophyllineae because they have anthocyanins, and not betalain pigments. However, cladistic analyses indicate Caryophyllaceae evolved from ancestors that contained betalain, reinforcing betalain as an accurate synapomorphy of the suborder.
This family is traditionally divided in three subfamilies:
Alsinoideae: no stipules, petals not united
Silenoideae: no stipules, petals united
Paronychioideae: fleshy stipules, petals separate or united
The last, however, are a basal grade of rather primitive members of this family, not closely related, but simply retaining many plesiomorphic traits. Instead of a subfamily, most ought to be treated as genera incertae sedis, but Corrigiola and Telephium might warrant recognition as Corrigioleae. The Alsinoideae, on the other hand, seem to form two distinct clades, perhaps less some misplaced genera. Finally, the Silenoideae appear monophyletic at least for the most part, if some of the taxa misplaced in Alsinoideae are moved there; it may be that the name Caryophylloideae would apply for the revised delimitation.
However, hybridization between many members of this family is rampant—particularly in the Silenoideae/Caryophylloideae—and some of the lineages of descent have been found to be highly complicated and do not readily yield to cladistic analysis.


Despite its size and the somewhat doubtful mutual relationships, this family is rather uniform and easily recognizable.
Most are herbaceous annuals or perennials, dying off above ground each year. A few species are shrubs or small trees, such as some Acanthophyllum species. Most plants are non-succulent; i.e. having no fleshy stems or leaves. The nodes on the stem are swollen. The leaves are almost always opposite, rarely whorled. The blades are entire, petiolate, and often stipulate. These stipules are not sheath-forming.
The hermaphroditic flowers are terminal, blooming singly or branched or forked in cymes. The inflorescence is usually dichasial at least in the lower parts, which means that in the axil of each peduncle (primary flower stalk) of the terminal flower in the cyme, two new single-flower branches sprout up on each side of and below the first flower. If the terminal flowers are absent, then this can lead to monochasia, i.e. a monoparous cyme with a single flower on each axis of the inflorescence. In the extreme, this leads to a single flower, such as in Githago or Arenaria. The flowers are regular and mostly with five petals and five sepals, but sometimes with four petals. The sepals may be free from one another or united. The petals may be entire, fringed or deeply cleft. The calyx may be cylindrically inflated, as in Silene. The stamens number five or 10 (or more rarely four or eight), and are mostly isomerous with the perianth. The superior gynoecium has two to five carpels (members of a compound pistil) and is syncarpous; i.e. with these carpels united in a compound ovary. This ovary has one chamber inside the ovary. The fruit may be a utricle with a single seed or a capsule containing several seeds.


Caryophyllaceae, commonly called the pink family or carnation family, is a family of flowering plants. It is included in the dicotyledon order Caryophyllales in the APG III system, alongside 33 other families, including Amaranthaceae, Cactaceae, and Polygonaceae. It is a large family, with 81 genera and about 2,625 known species.
This cosmopolitan family of mostly herbaceous plants is best represented in temperate climates, with a few species growing on tropical mountains. Some of the more commonly known members include pinks and carnations (Dianthus), and firepink and campions (Lychnis and Silene). Many species are grown as ornamental plants, and some species are widespread weeds. Most species grow in the Mediterranean and bordering regions of Europe and Asia. The number of genera and species in the Southern Hemisphere is rather small, although the family does contain Antarctic pearlwort (Colobanthus quitensis), the world's southernmost dicot, which is one of only two flowering plants found in Antarctica.
The name comes from Caryophyllus, an obsolete synonym of Dianthus.


Jaundice, also known as icterus, is a yellowish or greenish pigmentation of the skin and sclera due to high bilirubin levels. Jaundice in adults is typically a sign indicating the presence of underlying diseases involving abnormal heme metabolism, liver dysfunction, or biliary-tract obstruction. The prevalence of jaundice in adults is rare, while jaundice in babies is common, with an estimated 80% affected during their first week of life. The most commonly associated symptoms of jaundice are itchiness, pale feces, and dark urine.
Normal levels of bilirubin in blood are below 1.0 mg/dl (17 μmol/L), while levels over 2–3 mg/dl (34–51 μmol/L) typically result in jaundice. High blood bilirubin is divided into two types – unconjugated and conjugated bilirubin.
Causes of jaundice vary from relatively benign to potentially fatal. High unconjugated bilirubin may be due to excess red blood cell breakdown, large bruises, genetic conditions such as Gilbert's syndrome, not eating for a prolonged period of time, newborn jaundice, or thyroid problems. High conjugated bilirubin may be due to liver diseases such as cirrhosis or hepatitis, infections, medications, or blockage of the bile duct, due to factors including gallstones, cancer, or pancreatitis. Other conditions can also cause yellowish skin, but are not jaundice, including carotenemia, which can develop from eating large amounts of foods containing carotene — or medications such as rifampin.
Treatment of jaundice is typically determined by the underlying cause. If a bile duct blockage is present, surgery is typically required; otherwise, management is medical. Medical management may involve treating infectious causes and stopping medication that could be contributing to the jaundice. Jaundice in newborns may be treated with phototherapy or exchanged transfusion depending on age and prematurity when the bilirubin is greater than 4–21 mg/dl (68–360 μmol/L). The itchiness may be helped by draining the gallbladder, ursodeoxycholic acid, or opioid antagonists such as naltrexone. The word "jaundice" is from the French jaunisse, meaning "yellow disease".


Hepatic jaundice is caused by abnormal liver metabolism of bilirubin. The major causes of hepatic jaundice are significant damage to hepatocytes due to infectious, drug/medication-induced, autoimmune etiology, or less commonly, due to inheritable genetic diseases. The following is a partial list of hepatic causes to jaundice:
Acute hepatitis
Chronic hepatitis
Hepatotoxicity
Cirrhosis
Drug-induced hepatitis
Alcoholic liver disease
Gilbert's syndrome (found in about 5% of the population, results in induced mild jaundice)
Crigler-Najjar syndrome, type I
Crigler-Najjar syndrome, type II
Leptospirosis


Transesterification of a vegetable oil was conducted as early as 1853 by Patrick  Duffy, four decades before the first diesel engine became functional. Rudolf Diesel's prime model, a single 10 ft (3.05 m) iron cylinder with a flywheel at its base, ran on its own power for the first time in Augsburg, Germany, on 10 August 1893 running on nothing but peanut oil. In remembrance of this event, 10 August has been declared "International Biodiesel Day".
It is often reported that Diesel designed his engine to run on peanut oil, but this is not the case. Diesel stated in his published papers, "at the Paris Exhibition in 1900 (Exposition Universelle) there was shown by the Otto Company a small Diesel engine, which, at the request of the French government ran on arachide (earth-nut or pea-nut) oil (see biodiesel), and worked so smoothly that only a few people were aware of it. The engine was constructed for using mineral oil, and was then worked on vegetable oil without any alterations being made. The French Government at the time thought of testing the applicability to power production of the Arachide, or earth-nut, which grows in considerable quantities in their African colonies, and can easily be cultivated there." Diesel himself later conducted related tests and appeared supportive of the idea. In a 1912 speech Diesel said, "the use of vegetable oils for engine fuels may seem insignificant today but such oils may become, in the course of time, as important as petroleum and the coal-tar products of the present time."
Despite the widespread use of petroleum-derived diesel fuels, interest in vegetable oils as fuels for internal combustion engines was reported in several countries during the 1920s and 1930s and later during World War II. Belgium, France, Italy, the United Kingdom, Portugal, Germany, Brazil, Argentina, Japan and China were reported to have tested and used vegetable oils as diesel fuels during this time. Some operational problems were reported due to the high viscosity of vegetable oils compared to petroleum diesel fuel, which results in poor atomization of the fuel in the fuel spray and often leads to deposits and coking of the injectors, combustion chamber and valves. Attempts to overcome these problems included heating of the vegetable oil, blending it with petroleum-derived diesel fuel or ethanol, pyrolysis and cracking of the oils.
On 31 August 1937, G. Chavanne of the University of Brussels (Belgium) was granted a patent for a "Procedure for the transformation of vegetable oils for their uses as fuels" (fr. "Procédé de Transformation d’Huiles Végétales en Vue de Leur Utilisation comme Carburants") Belgian Patent 422,877. This patent described the alcoholysis (often referred to as transesterification) of vegetable oils using ethanol (and mentions methanol) in order to separate the fatty acids from the glycerol by replacing the glycerol with short linear alcohols. This appears to be the first account of the production of what is known as "biodiesel" today. This is similar (copy) to the patented methods used in the 18th century to make lamp-oil, and may be inspired by some old historical oil lamps, in some places.
More recently, in 1977, Brazilian scientist Expedito Parente invented and submitted for patent, the first industrial process for the production of biodiesel. This process is classified as biodiesel by international norms, conferring a "standardized identity and quality. No other proposed biofuel has been validated by the motor industry." As of 2010, Parente's company Tecbio is working with Boeing and NASA to certify bioquerosene (bio-kerosene), another product produced and patented by the Brazilian scientist.
Research into the use of transesterified sunflower oil, and refining it to diesel fuel standards, was initiated in South Africa in 1979. By 1983, the process for producing fuel-quality, engine-tested biodiesel was completed and published internationally. An Austrian company, Gaskoks, obtained the technology from the South African Agricultural Engineers; the company erected the first biodiesel pilot plant in November 1987, and the first industrial-scale plant in April 1989 (with a capacity of 30,000 tons of rapeseed per annum).
Throughout the 1990s, plants were opened in many European countries, including the Czech Republic, Germany and Sweden. France launched local production of biodiesel fuel (referred to as diester) from rapeseed oil, which is mixed into regular diesel fuel at a level of 5%, and into the diesel fuel used by some captive fleets (e.g. public transportation) at a level of 30%. Renault, Peugeot and other manufacturers have certified truck engines for use with up to that level of partial biodiesel; experiments with 50% biodiesel are underway. During the same period, nations in other parts of the world also saw local production of biodiesel starting up: by 1998, the Austrian Biofuels Institute had identified 21 countries with commercial biodiesel projects. 100% biodiesel is now available at many normal service stations across Europe.


British train operating company Virgin Trains West Coast claimed to have run the UK's first "biodiesel train", when a Class 220 was converted to run on 80% petrodiesel and 20% biodiesel.
The British Royal Train on 15 September 2007 completed its first ever journey run on 100% biodiesel fuel supplied by Green Fuels Ltd. Prince Charles and Green Fuels managing director James Hygate were the first passengers on a train fueled entirely by biodiesel fuel. Since 2007, the Royal Train has operated successfully on B100 (100% biodiesel). A government white paper also proposed converting large portions of the UK railways to biodiesel but the proposal was subsequently dropped in favour of further electrification.
Similarly, a state-owned short-line railroad in Eastern Washington ran a test of a 25% biodiesel / 75% petrodiesel blend during the summer of 2008, purchasing fuel from a biodiesel producer sited along the railroad tracks. The train will be powered by biodiesel made in part from canola grown in agricultural regions through which the short line runs.
Also in 2007, Disneyland began running the park trains on B98 (98% biodiesel). The program was discontinued in 2008 due to storage issues, but in January 2009, it was announced that the park would then be running all trains on biodiesel manufactured from its own used cooking oils. This is a change from running the trains on soy-based biodiesel.
In 2007, the historic Mt. Washington Cog Railway added the first biodiesel locomotive to its all-steam locomotive fleet. The fleet has climbed up the western slopes of Mount Washington in New Hampshire since 1868 with a peak vertical climb of 37.4 degrees.
On 8 July 2014, the then Indian Railway Minister D.V. Sadananda Gowda announced in Railway Budget that 5% bio-diesel will be used in Indian Railways' Diesel Engines.


Biodiesel can be used in pure form (B100) or may be blended with petroleum diesel at any concentration in most injection pump diesel engines. New extreme high-pressure (29,000 psi) common rail engines have strict factory limits of B5 or B20, depending on manufacturer. Biodiesel has different solvent properties from petrodiesel, and will degrade natural rubber gaskets and hoses in vehicles (mostly vehicles manufactured before 1992), although these tend to wear out naturally and most likely will have already been replaced with FKM, which is nonreactive to biodiesel. Biodiesel has been known to break down deposits of residue in the fuel lines where petrodiesel has been used. As a result, fuel filters may become clogged with particulates if a quick transition to pure biodiesel is made. Therefore, it is recommended to change the fuel filters on engines and heaters shortly after first switching to a biodiesel blend.


In 2005, Chrysler (then part of DaimlerChrysler) released the Jeep Liberty CRD diesels from the factory into the European market with 5% biodiesel blends, indicating at least partial acceptance of biodiesel as an acceptable diesel fuel additive.  In 2007, DaimlerChrysler indicated its intention to increase warranty coverage to 20% biodiesel blends if biofuel quality in the United States can be standardized.
The Volkswagen Group has released a statement indicating that several of its vehicles are compatible with B5 and B100 made from rape seed oil and compatible with the EN 14214 standard. The use of the specified biodiesel type in its cars will not void any warranty.
Mercedes Benz does not allow diesel fuels containing greater than 5% biodiesel (B5) due to concerns about "production shortcomings". Any damages caused by the use of such non-approved fuels will not be covered by the Mercedes-Benz Limited Warranty.
Starting in 2004, the city of Halifax, Nova Scotia decided to update its bus system to allow the fleet of city buses to run entirely on a fish-oil based biodiesel. This caused the city some initial mechanical issues, but after several years of refining, the entire fleet had successfully been converted.
In 2007, McDonald's of UK announced it would start producing biodiesel from the waste oil byproduct of its restaurants. This fuel would be used to run its fleet.
The 2014 Chevy Cruze Clean Turbo Diesel, direct from the factory, will be rated for up to B20 (blend of 20% biodiesel / 80% regular diesel) biodiesel compatibility


The insect family Coenagrionidae is placed in the order Odonata and the suborder Zygoptera.
The Zygoptera are the damselflies, which although less known than the dragonflies, are no less common. More than 1,300 species are in this family, making it the largest damselfly family. The family Coenagrionidae has six subfamilies: Agriocnemidinae, Argiinae, Coenagrioninae, Ischnurinae, Leptobasinae, and Pseudagrioninae.
This family is referred to as the narrow-winged damselflies or the pond damselflies. The Coenagrionidae enjoy a worldwide distribution, and are among the most common of damselfly families. This family has the smallest of damselfly species. More than 110 genera of the family Coenagrionidae are currently accepted.


These genera belong to the family Coenagrionidae:
Acanthagrion Selys, 1876
Acanthallagma Williamson & Williamson, 1924
Aceratobasis Kennedy, 1920
Aciagrion Selys, 1891
Aeolagrion Williamson, 1917
Africallagma Kennedy, 1920
Agriocnemis Selys, 1877
Amazoneura Machado, 2004
Amphiagrion Selys, 1876  (red damsels)
Amphiallagma Kennedy, 1920
Amphicnemis Selys, 1863
Andinagrion Bulla, 1973
Angelagrion Lencioni, 2008
Anisagrion Selys, 1876
Anomisma McLachlan, 1877
Antiagrion Ris, 1904
Apanisagrion Kennedy, 1920
Archibasis Kirby, 1890
Argentagrion Fraser, 1948
Argia Rambur, 1842  (dancers)
Argiocnemis Selys, 1877
Austroagrion Tillyard, 1913
Austroallagma Lieftinck, 1953
Austrocnemis Tillyard, 1913
Austrocoenagrion Kennedy, 1920
Austrotepuibasis Machado & Lencioni, 2011
Azuragrion May, 2002
Bromeliagrion De Marmels, 2005
Caliagrion Tillyard, 1913
Calvertagrion St. Quentin, 1960
Ceriagrion Selys, 1876
Chromagrion Needham, 1903  (aurora damsels)
Coenagriocnemis Fraser, 1949
Coenagrion Kirby, 1890  (Eurasian bluets)
Coryphagrion Morton, 1924
Cyanallagma Kennedy, 1920
Denticulobasis Machado, 2009
Diceratobasis Kennedy, 1920
Dolonagrion Garrison & von Ellenrieder, 2008
Drepanoneura von Ellenrieder & Garrison, 2008
Enacantha Donnelly & Alayo, 1966
Enallagma Charpentier, 1840  (American bluets)
Epipleoneura Williamson, 1915
Epipotoneura Williamson, 1915
Erythromma Charpentier, 1840
Fluminagrion Anjos-Santos, Lozano & Costa, 2013
Forcepsioneura Lencioni, 1999
Franciscagrion Machado & Bedê, 2016
Franciscobasis Machado & Bedê, 2016
Hesperagrion Calvert, 1902  (painted damsels)
Hivaagrion Hämäläinen & Marinov, 2014
Homeoura Kennedy, 1920
Huosoma Guan, Dumont, Yu, Han & Vierstraete, 2013
Hylaeonympha Rácenis, 1968
Idioneura Selys, 1860
Inpabasis Santos, 1961
Ischnura Charpentier, 1840  (forktails)
Junix Rácenis, 1968
Lamproneura De Marmels, 2003
Leptagrion Selys, 1876
Leptobasis Selys, 1877  (swamp damsels)
Leptocnemis Selys, 1886
Leucobasis Rácenis, 1959
Luzonobasis Villanueva, 2012
Mecistogaster Rambur, 1842
Megalagrion McLachlan, 1883
Megaloprepus Rambur, 1842
Melanesobasis Donnelly, 1984
Mesamphiagrion Kennedy, 1920
Mesoleptobasis Sjöstedt, 1918
Metaleptobasis Calvert, 1907
Microstigma Rambur, 1842
Millotagrion Fraser, 1953
Minagrion Santos, 1965
Mortonagrion Fraser, 1920
Nehalennia Selys, 1850  (sprites)
Neoerythromma Kennedy, 1920  (yellowfaces)
Neoneura Selys, 1860  (robust threadtails)
Nesobasis Selys, 1891
Oreiallagma von Ellenrieder & Garrison, 2008
Oreocnemis Pinhey, 1971
Oxyagrion Selys, 1876
Oxyallagma Kennedy, 1920
Pacificagrion Fraser, 1926
Pandanobasis Villanueva, 2012
Papuagrion Ris, 1913
Paracercion Weekers & Dumont, 2004
Pericnemis Selys, 1863
Peristicta Hagen in Selys, 1860
Phasmoneura Williamson, 1916
Phoenicagrion von Ellenrieder, 2008
Pinheyagrion May, 2002
Plagulibasis Lieftinck, 1949
Platystigma Kennedy, 1920
Proischnura Kennedy, 1920
Proneura Selys, 1889
Protallagma Kennedy, 1920
Protoneura Selys in Sagra, 1857
Psaironeura Williamson, 1915
Pseudagrion Selys, 1876
Pseudostigma Selys, 1860
Pyrrhosoma Charpentier, 1840
Roppaneura Santos, 1966
Sangabasis Villanueva, 2012
Schistolobos von Ellenrieder & Garrison, 2008
Stenagrion Laidlaw, 1915
Teinobasis Kirby, 1890
Telagrion Selys, 1876
Telebasis Selys, 1865  (firetails)
Tepuibasis De Marmels, 2007
Thaumatagrion Lieftinck, 1932
Tigriagrion Calvert, 1909
Tuberculobasis Machado, 2009
Tukanobasis Machado, 2009
Vanuatubasis Ober & Staniczek, 2009
Xanthagrion Selys, 1876
Xanthocnemis Tillyard, 1913
Xiphiagrion Selys, 1876
Zoniagrion Kennedy, 1920


The name may be derived from Greek coen meaning shared or common and agrio meaning fields or wild.


Usually have a black pattern
Ground color may be green, blue, yellow, orange, or purple
Narrow, stalked, usually colorless and clear wings
Two antenodal cross veins
Vein M3 arising nearer to nodus than arculus
Adults are seen around various habitats including ponds and wetlands. The females lay their eggs among living or dead submerged vegetation, and in some species, even crawl about underwater depositing their eggs. The nymphs are usually found in debris or among living or dead submerged plant material.


In the early 19th century, Puerto Rico spawned an independence movement that, due to harsh persecution by the Spanish authorities, convened in the island of St. Thomas. The movement was largely inspired by the ideals of Simón Bolívar in establishing a United Provinces of New Granada and Venezuela, that included Puerto Rico and Cuba. Among the influential members of this movement were Brigadier General Antonio Valero de Bernabé and María de las Mercedes Barbudo. The movement was discovered, and Governor Miguel de la Torre had its members imprisoned or exiled.
With the increasingly rapid growth of independent former Spanish colonies in the South and Central American states in the first part of the 19th century, the Spanish Crown considered Puerto Rico and Cuba of strategic importance. To increase its hold on its last two New World colonies, the Spanish Crown revived the Royal Decree of Graces of 1815 as a result of which 450,000 immigrants, mainly Spaniards, settled on the island in the period up until the American conquest. Printed in three languages—Spanish, English, and French—it was intended to also attract non-Spanish Europeans, with the hope that the independence movements would lose their popularity if new settlers had stronger ties to the Crown. Hundreds of non-Spanish families, mainly from Corsica, France, Germany, Ireland, Italy and Scotland, also immigrated to the island.
Free land was offered as an incentive to those who wanted to populate the two islands, on the condition that they swear their loyalty to the Spanish Crown and allegiance to the Roman Catholic Church. The offer was very successful, and European immigration continued even after 1898. Puerto Rico still receives Spanish and European immigration.
Poverty and political estrangement with Spain led to a small but significant uprising in 1868 known as Grito de Lares. It began in the rural town of Lares, but was subdued when rebels moved to the neighboring town of San Sebastián.
Leaders of this independence movement included Ramón Emeterio Betances, considered the "father" of the Puerto Rican independence movement, and other political figures such as Segundo Ruiz Belvis. Slavery was abolished in Puerto Rico in 1873, "with provisions for periods of apprenticeship".
Leaders of "El Grito de Lares" went into exile in New York City. Many joined the Puerto Rican Revolutionary Committee, founded on 8 December 1895, and continued their quest for Puerto Rican independence. In 1897, Antonio Mattei Lluberas and the local leaders of the independence movement in Yauco organized another uprising, which became known as the Intentona de Yauco. They raised what they called the Puerto Rican flag, which was adopted as the national flag. The local conservative political factions opposed independence. Rumors of the planned event spread to the local Spanish authorities who acted swiftly and put an end to what would be the last major uprising in the island to Spanish colonial rule.
In 1897, Luis Muñoz Rivera and others persuaded the liberal Spanish government to agree to grant limited self-government to the island by royal decree in the Autonomic Charter, including a bicameral legislature. In 1898, Puerto Rico's first, but short-lived, autonomous government was organized as an "overseas province" of Spain. This bilaterally agreed-upon charter maintained a governor appointed by the King of Spain—who held the power to annul any legislative decision—and a partially elected parliamentary structure. In February, Governor-General Manuel Macías inaugurated the new government under the Autonomic Charter. General elections were held in March and the new government began to function on 17 July 1898.


In 1890, Captain Alfred Thayer Mahan, a member of the Navy War Board and leading U.S. strategic thinker, published a book titled The Influence of Sea Power upon History in which he argued for the establishment of a large and powerful navy modeled after the British Royal Navy. Part of his strategy called for the acquisition of colonies in the Caribbean, which would serve as coaling and naval stations. They would serve as strategic points of defense with the construction of a canal through the Isthmus of Panama, to allow easier passage of ships between the Atlantic and Pacific oceans.
William H. Seward, the Secretary of State under presidents Abraham Lincoln and Andrew Johnson, had also stressed the importance of building a canal in Honduras, Nicaragua or Panama. He suggested that the United States annex the Dominican Republic and purchase Puerto Rico and Cuba. The U.S. Senate did not approve his annexation proposal, and Spain rejected the U.S. offer of 160 million dollars for Puerto Rico and Cuba.
Since 1894, the United States Naval War College had been developing contingency plans for a war with Spain. By 1896, the U.S. Office of Naval Intelligence had prepared a plan that included military operations in Puerto Rican waters. Plans generally centered on attacks on Spanish territories were intended as support operations against Spain's forces in and around Cuba. Recent research suggests that the U.S. did consider Puerto Rico valuable as a naval station, and recognized that it and Cuba generated lucrative crops of sugar, a valuable commercial commodity which the United States lacked prior to the development of the sugar beet industry in the United States.
On 25 July 1898, during the Spanish–American War, the U.S. invaded Puerto Rico with a landing at Guánica. After the U.S. prevailed in the war, Spain ceded Puerto Rico, along with the Philippines and Guam, to the U.S. under the Treaty of Paris, which went into effect on 11 April 1899; Spain relinquished sovereignty over Cuba, but did not cede it to the U.S.


Puerto Rico is Spanish for "rich port". Puerto Ricans often call the island Borinquén, a derivation of Borikén, its indigenous Taíno name, which means "Land of the Valiant Lord". The terms boricua and borincano are commonly used to identify someone of Puerto Rican heritage, and derive from Borikén and Borinquen respectively. The island is also popularly known in Spanish as la isla del encanto, meaning "the island of enchantment".
Columbus named the island San Juan Bautista, in honor of Saint John the Baptist, while the capital city was named Ciudad de Puerto Rico ("Rich Port City"). Eventually traders and other maritime visitors came to refer to the entire island as Puerto Rico, while San Juan became the name used for the main trading/shipping port and the capital city.
The island's name was changed to Porto Rico by the United States after the Treaty of Paris of 1898. The anglicized name was used by the U.S. government and private enterprises. The name was changed back to Puerto Rico in 1931 by a joint resolution in Congress introduced by Félix Córdova Dávila.
The official name of the entity in Spanish is Estado Libre Asociado de Puerto Rico ("Free Associated State of Puerto Rico"), while its official English name is Commonwealth of Puerto Rico.


A new state constitution in 1864 abolished slavery and Maryland was first recognized as a "Free State" in that context. Following passage of constitutional amendments that granted voting rights to freedmen, in 1867 the state extended suffrage to non-white males.
The Democratic Party rapidly regained power in the state from Republicans. Democrats replaced the Constitution of 1864 with the Constitution of 1867. Following the end of Reconstruction in 1877, Democrats devised means of disenfranchising blacks, initially by physical intimidation and voter fraud, later by constitutional amendments and laws. Blacks and immigrants, however, resisted Democratic Party disfranchisement efforts in the state. Maryland blacks were part of a biracial Republican coalition elected to state government in 1896–1904 and comprised 20% of the electorate.
Compared to some other states, blacks were better established both before and after the civil war. Nearly half the black population was free before the war, and some had accumulated property. Half the population lived in cities. Literacy was high among blacks and, as Democrats crafted means to exclude them, suffrage campaigns helped reach blacks and teach them how to resist. Whites did impose racial segregation in public facilities and Jim Crow laws, which effectively lasted until the passage of federal civil rights legislation in the mid-1960s.
Baltimore grew significantly during the Industrial Revolution, due in large part to its seaport and good railroad connections, attracting European immigrant labor. Many manufacturing businesses were established in the Baltimore area after the Civil War. Baltimore businessmen, including Johns Hopkins, Enoch Pratt, George Peabody, and Henry Walters, founded notable city institutions that bear their names, including respectively a university, library system, music and dance conservatory, and art museum.
Cumberland was Maryland's second-largest city in the 19th century. Nearby supplies of natural resources along with railroads fostered its growth into a major manufacturing center.


George Calvert, 1st Baron Baltimore (1579–1632), sought a charter from King Charles I for the territory between Massachusetts to the north and Virginia to the immediate south.
After Baltimore died in April 1632, the charter was granted to his son, Cecilius Calvert, 2nd Baron Baltimore (1605–1675), on June 20, 1632. Officially, the new "Maryland Colony" was named in honor of Henrietta Maria of France, wife of Charles I of England. Lord Baltimore initially proposed the name "Crescentia", the land of growth or increase, but "the King proposed Terra Mariae [Mary Land], which was concluded on and Inserted in the bill."
The original capital of Maryland was St. Mary's City, on the north shore of the Potomac River, and the county surrounding it, the first erected/created in the province, was first called Augusta Carolina, after the King, and later named St. Mary's County.
Lord Baltimore's first settlers arrived in the new colony in March 1634, with his younger brother the Honorable Leonard Calvert (1606–1647), as first provincial Governor of Maryland. They made their first permanent settlement at St. Mary's City in what is now St. Mary's County. They purchased the site from the paramount chief of the region, who was eager to establish trade. St. Mary's became the first capital of Maryland, and remained so for 60 years until 1695. More settlers soon followed. Their tobacco crops were successful and quickly made the new colony profitable. However, given the incidence of malaria, yellow fever, and typhoid, life expectancy in Maryland was about 10 years less than in New England.


The state remained with the Union during the Civil War, due in significant part to demographics and Federal intervention. The 1860 census, held shortly before the outbreak of the civil war, showed that 49% of Maryland's African Americans were free blacks.
Governor Thomas Holliday Hicks suspended the state legislature, and to help ensure the election of a new pro-union governor and legislature, President Abraham Lincoln had a number of its pro-slavery politicians arrested, including the Mayor of Baltimore, George William Brown; suspended several civil liberties, including habeas corpus; and ordered artillery placed on Federal Hill overlooking Baltimore. Historians debate the constitutionality of these wartime actions, and the suspension of civil liberties was later deemed illegal by the U.S. Supreme Court.
In April 1861 Federal units and state regiments were attacked as they marched through Baltimore, sparking the Baltimore riot of 1861, the first bloodshed in the Civil War. Of the 115,000 men from Maryland who joined the military during the Civil War, 85,000, or 77%, joined the Union army, while the remainder joined the Confederate Army. The largest and most significant battle in the state was the Battle of Antietam on September 17, 1862, near Sharpsburg. Although a tactical draw, the battle was considered a strategic Union victory and a turning point of the war.


Influenced by a changing economy, revolutionary ideals, and preaching by ministers, numerous planters in Maryland freed their slaves in the 20 years after the Revolutionary War. Across the Upper South the free black population increased from less than 1% before the war to 14% by 1810. Abolitionists Harriet Tubman and Frederick Douglass were born slaves during this time in Dorchester County and Talbot County, respectively.
During the War of 1812, the British military attempted to capture Baltimore, which was protected by Fort McHenry. During this bombardment the song "Star Spangled Banner" was written by Francis Scott Key; it was later adopted as the national anthem.
The National Road (U.S. Hwy 40 today) was authorized in 1817 and ran from Baltimore to St. Louis—the first federal highway. The Baltimore and Ohio Railroad (B&O) was the first chartered railroad in the United States. It opened its first section of track for regular operation in 1830 between Baltimore and Ellicott City, and in 1852 it became the first rail line to reach the Ohio River from the eastern seaboard.


Most of the English colonists arrived in Maryland as indentured servants, and had to serve a several years' term as laborers to pay for their passage. In the early years, the line between indentured servants and African slaves or laborers was fluid, and white and black laborers commonly lived and worked together, and formed unions. Mixed-race children born to white mothers were considered free by the principle of partus sequitur ventrem, by which children took the social status of their mothers, a principle of slave law that was adopted throughout the colonies, following Virginia in 1662. During the colonial era, families of free people of color were formed most often by unions of white women and African men.
Many of the free black families migrated to Delaware, where land was cheaper. As the flow of indentured laborers to the colony decreased with improving economic conditions in England, planters in Maryland imported thousands more slaves and racial caste lines hardened. The economy's growth and prosperity were based on slave labor, devoted first to the production of tobacco as the commodity crop.
Maryland was one of the thirteen colonies that revolted against British rule in the American Revolution. Near the end of the American Revolutionary War (1775–1783), on February 2, 1781, Maryland became the last and 13th state to approve the ratification of the Articles of Confederation and Perpetual Union, first proposed in 1776 and adopted by the Second Continental Congress in 1778, which brought into being the United States as a united, sovereign and national state. It also became the seventh state admitted to the Union after ratifying the new federal Constitution in 1788. In December 1790, Maryland donated land selected by first President George Washington to the federal government for the creation of the new national capital of Washington, D.C. The land was provided along the north shore of the Potomac River from Montgomery and Prince George's counties, as well as from Fairfax County and Alexandria on the south shore of the Potomac in Virginia; however, the land donated by the Commonwealth of Virginia was later returned to that state by the District of Columbia retrocession in 1846.


In the last years of the Hafsid dynasty, Spain seized many of the coastal cities, but these were recovered by the Ottoman Empire.
The first Ottoman conquest of Tunis took place in 1534 under the command of Barbarossa Hayreddin Pasha, the younger brother of Oruç Reis, who was the Kapudan Pasha of the Ottoman Fleet during the reign of Suleiman the Magnificent. However, it was not until the final Ottoman reconquest of Tunis from Spain in 1574 under Kapudan Pasha Uluç Ali Reis that the Ottomans permanently acquired the former Hafsid Tunisia, retaining it until the French conquest of Tunisia in 1881.
Initially under Turkish rule from Algiers, soon the Ottoman Porte appointed directly for Tunis a governor called the Pasha supported by janissary forces. Before long, however, Tunisia became in effect an autonomous province, under the local bey. Under its Turkish governors, the beys, Tunisia attained virtual independence. The Hussein dynasty of beys, established in 1705, lasted until 1957. This evolution of status was from time to time challenged without success by Algiers. During this era the governing councils controlling Tunisia remained largely composed of a foreign elite who continued to conduct state business in the Turkish language.
Attacks on European shipping were made by corsairs, primarily from Algiers, but also from Tunis and Tripoli, yet after a long period of declining raids the growing power of the European states finally forced its termination. Under the Ottoman Empire, the boundaries of Tunisia contracted; it lost territory to the west (Constantine) and to the east (Tripoli).
The plague epidemics ravaged Tunisia in 1784–1785, 1796–1797 and 1818–1820.
In the 19th century, the rulers of Tunisia became aware of the ongoing efforts at political and social reform in the Ottoman capital. The Bey of Tunis then, by his own lights but informed by the Turkish example, attempted to effect a modernizing reform of institutions and the economy. Tunisian international debt grew unmanageable. This was the reason or pretext for French forces to establish a protectorate in 1881.


Sometime between the second half of the 7th century and the early part of the 8th century, Arab Muslim conquest occurred in the region. They founded the first Islamic city in Northwest Africa, Kairouan. It was there in 670 AD that the Mosque of Uqba, or the Great Mosque of Kairouan, was constructed. This mosque is the oldest and most prestigious sanctuary in the Muslim West with the oldest standing minaret in the world; it is also considered a masterpiece of Islamic art and architecture.
Tunis was taken in 695, re-taken by the Byzantine Eastern Romans in 697, but lost permanently in 698. The transition from a Latin-speaking Christian Berber society to a Muslim and mostly Arabic-speaking society took over 400 years (the equivalent process in Egypt and the Fertile Crescent took 600 years) and resulted in the final disappearance of Christianity and Latin in the 12th or 13th century. The majority of the population were not Muslim until quite late in the 9th century; a vast majority were during the 10th. Also, some Tunisian Christians emigrated; some richer members of society did so after the conquest in 698 and others were welcomed by Norman rulers to Sicily or Italy in the 11th and 12th centuries – the logical destination because of the 1200 year close connection between the two regions.
The Arab governors of Tunis founded the Aghlabid dynasty, which ruled Tunisia, Tripolitania and eastern Algeria from 800 to 909. Tunisia flourished under Arab rule when extensive systems were constructed to supply towns with water for household use and irrigation that promoted agriculture (especially olive production). This prosperity permitted luxurious court life and was marked by the construction of new palace cities such as al-Abassiya (809) and Raqadda (877).
After conquering Cairo, the Fatimids abandoned Tunisia and parts of Eastern Algeria to the local Zirids (972–1148). Zirid Tunisia flourished in many areas: agriculture, industry, trade, and religious and secular learning. Management by the later Zirid emirs was neglectful though, and political instability was connected to the decline of Tunisian trade and agriculture.
The depredation of the Tunisian campaigns by the Banu Hilal, a warlike Arab Bedouin tribe encouraged by the Fatimids of Egypt to seize Northwest Africa, sent the region's rural and urban economic life into further decline. Consequently, the region underwent rapid urbanisation as famines depopulated the countryside and industry shifted from agriculture to manufactures. The Arab historian Ibn Khaldun wrote that the lands ravaged by Banu Hilal invaders had become completely arid desert.
The main Tunisian cities were conquered by the Normans of Sicily under the Kingdom of Africa in the 12th century, but following the conquest of Tunisia in 1159–1160 by the Almohads the Normans were evacuated to Sicily. Communities of Tunisian Christians would still exist in Nefzaoua up to the 14th century. The Almohads initially ruled over Tunisia through a governor, usually a near relative of the Caliph. Despite the prestige of the new masters, the country was still unruly, with continuous rioting and fighting between the townsfolk and wandering Arabs and Turks, the latter being subjects of the Muslim Armenian adventurer Karakush. Also, Tunisia was occupied by Ayyubids between 1182 and 1183 and again between 1184 and 1187.
The greatest threat to Almohad rule in Tunisia was the Banu Ghaniya, relatives of the Almoravids, who from their base in Mallorca tried to restore Almoravid rule over the Maghreb. Around 1200 they succeeded in extending their rule over the whole of Tunisia until they were crushed by Almohad troops in 1207. After this success, the Almohads installed Walid Abu Hafs as the governor of Tunisia. Tunisia remained part of the Almohad state, until 1230 when the son of Abu Hafs declared himself independent. During the reign of the Hafsid dynasty, fruitful commercial relationships were established with several Christian Mediterranean states. In the late 16th century the coast became a pirate stronghold.