Answer: ottomanempire

AnswerCrossword Clue
OTTOMANEMPIREConstantinople was one of its capitals
OTTOMANEMPIREConstantinople was its capital
OTTOMANEMPIREIts capital was Constantinople
OTTOMANEMPIREHistoric state, c. 1300-1919.
OTTOMANEMPIREIt was founded by Osman and collapsed after WWI
OTTOMANEMPIRETurkish state, once
OTTOMANEMPIRESultanate founded by Osman I