Turkey (Turkish: Türkiye Turkish pronunciation: [ˈtyɾcije]), officially the Republic of Türkiye (Turkish: Türkiye Cumhuriyeti [ˈtyɾcije dʒumˈhuːɾijeti] (listen)), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula in Southeast Europe. It borders the Black Sea to the north; Georgia to the northeast; Armenia, Azerbaijan, and Iran to the east; Iraq to the southeast; Syria and the Mediterranean Sea to the south; the Aegean Sea to the west; and Greece and Bulgaria to the northwest. Cyprus is off the south coast. Most of the country's citizens are ethnic Turks, while Kurds are the largest ethnic minority. Ankara is Turkey's capital and second-largest city; Istanbul is its largest city and main financial centre.
One of the world's earliest permanently settled regions, present-day Turkey was home to important Neolithic sites like Göbekli Tepe, and was inhabited by ancient civilizations including the Hattians, Hittites, Anatolian peoples, Mycenaean Greeks, Persians, and others.
Following the conquests of Alexander the Great which started the Hellenistic period, most of the ancient regions were culturally Hellenized, and this continued during the Byzantine era. The Seljuk Turks began migrating to Anatolia in the 11th century, which started the Turkification process. The Seljuk Sultanate of Rum ruled Anatolia until the Mongol invasion in 1243, when it disintegrated into small Turkish principalities. Beginning in the late 13th century, the Ottomans united the principalities and conquered the Balkans, while the Turkification of Anatolia further progressed during the Ottoman period. After Mehmed II conquered Constantinople (now Istanbul) in 1453, Ottoman expansion continued under Selim I. During the reign of Suleiman the Magnificent, the Ottoman Empire became a global power.