 The Fall of Constantinople on May 29, 1453, and the subsequent fall in 1461 of the Greek Empire of Trebizond, located along the eastern Black Sea coast, marked the end of Greek sovereignty in Asia Minor.The first centuries of the Ottoman rule were named "The Dark centuries" by the Greeks.The custom of the Janissaries and the various restrictions on the religious, economic and social lives of the non-Muslim inhabitants of the Empire constituted an imminent danger for the continuation of the Greek inhabitation of Asia Minor.