Ottoman Turkish ) Devlet-i Ebed-müddet ("the Eternal State") The Ottoman Empire at the height of its power (1683) Official language Ottoman Turkish Capital Sogut (1299-1326), Bursa (1326-1365), Edirne (1365-1453), Istanbul (1453-1922) Imperial anthem Ottoman imperial anthem Sovereigns Padishah of the Osmanli Dynasty Population ca 40 million Area 6.3m km² (1902); maximum