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Palmyra (; Palmyrene:  Tadmor; Arabic: تَدْمُر‎ Tadmur) is an ancient Semitic city in present-day Homs Governorate, Syria. Archaeological finds date back to the Neolithic period, and documents first mention the city in the early second millennium BC. Palmyra changed hands on a number of occasions between different empires before becoming a subject of the Roman Empire in the first century AD.
The city grew wealthy from trade caravans; the Palmyrenes became renowned as merchants who established colonies along the Silk Road and operated throughout the Roman Empire. Palmyra's wealth enabled the construction of monumental projects, such as the Great Colonnade, the Temple of Bel, and the distinctive tower tombs. Ethnically, the Palmyrenes combined elements of Amorites, Arameans, and Arabs. The city's social structure was tribal, and its inhabitants spoke Palmyrene (a dialect of Aramaic), while using Greek for commercial and diplomatic purposes. Greco-Roman culture influenced the culture of Palmyra, which produced distinctive art and architecture that combined eastern and western traditions. The city's inhabitants worshiped local Semitic deities, Mesopotamian and Arab gods.
By the third century AD Palmyra had become a prosperous regional center. It reached the apex of its power in the 260s, when the Palmyrene King Odaenathus defeated Persian Emperor Shapur I. The king was succeeded by regent Queen Zenobia, who rebelled against Rome and established the Palmyrene Empire. In 273, Roman emperor Aurelian destroyed the city, which was later restored by Diocletian at a reduced size. The Palmyrenes converted to Christianity during the fourth century and to Islam in the centuries following the conquest by the 7th-century Rashidun Caliphate, after which the Palmyrene and Greek languages were replaced by Arabic.
Before AD 273, Palmyra enjoyed autonomy and was attached to the Roman province of Syria, having its political organization influenced by the Greek city-state model during the first two centuries AD. The city became a...

Shapur