Trabzon, historically known as Trapezus and Trebizond, formed the basis of several states in its long history and was the capital city of the so-called "Empire of Trebizond" between 1204 and 1461. Geographically, the first empire never enveloped more than the southern coast of the Black Sea. Its demographic heritage, however, endured for several centuries following a Turkish annexation in 1461 and a substantial number of Greek Orthodox inhabitants remained in the area until the early 20th century.