Alexander wrested control of the whole region from Persia in successive battles. After Alexander's death, his conquests were split amongst several of his trusted generals, but were under constant threat of invasion from both the Gauls and other powerful rulers in Pergamon, Pontus, and Egypt. The Seleucid Empire, the largest of Alexander's territories, and which included Anatolia, became involved in a disastrous war with Rome culminating in the battles of Thermopylae and Magnesia. The resulting Treaty of Apamea in (188 BC) saw the Seleucids retreat from Anatolia. The Kingdom of Pergamum and the Republic of Rhodes, Rome's allies in the war, were granted the former Seleucid lands in Anatolia.
Achaemenid Persian rule in Anatolia ended with the conquests of Alexander the Great, defeating Darius III between 334 and 330 BCE. Roman control of Anatolia was strengthened by a 'hands off' approach by Rome, allowing local control to govern effectively and providing military protection. In the early 4th century, Constantine the Great established a new administrative centre at Constantinople, and by the end of the 4th century the Roman empire split into two parts, the Eastern part (Romania) with Constantinople as its capital, referred to by historians as the Byzantine Empire from the original name, Byzantium.
Information About Turkey
Republic of Turkey, is a transcontinental country located mainly on the Anatolia, with a smaller portion on the Balkan Peninsula in Southeastern Europe. Turkey is bordered on its northwest by Greece and Bulgaria; north by the Black Sea; northeast by Georgia; east by Armenia, Azerbaijan, and Iran; southeast by Iraq; south by Syria and the Mediterranean Sea; and west by the Aegean Sea. Approximately 70 to 80 percent of the country's citizens are ethnic Turks. Istanbul, which straddles Europe and Asia, is the country's largest city, while Ankara is the capital. One of the world's earliest permanently settled regions, present-day Turkey was home to important Neolithic sites, and was inhabitated by various civilisations. Hellenization started during the era of Alexander the Great and continued into the Byzantine era.
The Seljuk Turks began migrating into the area in the 11th century, and the Seljuk Sultanate of Rûm ruled Anatolia until the Mongol invasion in 1243, when it disintegrated into small Turkish principalities. Beginning in the late 13th century, the Ottomans started uniting the principalities and conquering the Balkans, and the Turkification of Anatolia increased during the Ottoman period. The Turkish War of Independence, initiated by Mustafa Kemal Atatürk and his comrades against the occupying Allied Powers, resulted in the abolition of the sultanate on 1 November 1922, and the establishment of the Republic of Turkey on 29 October 1923. Turkey is a developing country, a regional power, and a newly industrialized country, with a geopolitically strategic location. It is a charter member of the UN, an early member of NATO, the IMF, and the World Bank, and a founding member of the OECD, OSCE, BSEC, OIC, and G20.
