Geography of Turkey part of Turkey accounts for 95% of the country's area. It is also known as Asia Minor, Asiatic Turkey or the Anatolian Plateau. The term Anatolia is most frequently used in specific reference to the large, semiarid central plateau, which is rimmed by hills and mountains that in many places limit access to the fertile, densely settled coastal regions. The European portion of Turkey, known as Thrace (), encompasses roughly 3% of the total area but is home to more than 10% of the total population. Istanbul, the largest city of Thrace and Turkey, has a population of 11,372,613. Thrace
Diocese of Thrace Diocese of Thrace The Diocese of Thrace (, ) was a diocese of the later Roman Empire, incorporating the provinces of the eastern Balkan Peninsula (comprising territories in modern south-eastern Romania, central and eastern Bulgaria, and Greek and Turkish Thrace). Philippopolis (modern Plovdiv, in Bulgaria) was the capital. The diocese was established as part of the reforms of Diocletian and Constantine the Great, and was headed by a "vicarius" subordinate to the praetorian prefecture of the East. As outlined in the "Notitia Dignitatum" of ca. 400, the diocese included the provinces of Europa, Thracia, Haemimontus, Rhodope, Moesia II and Scythia