History of Thrace

thumb|Thrace in the modern boundaries of Bulgaria, [[Greece, and Turkey]] thumb|The physical–geographical boundaries of Thrace: the Balkan Mountains to the north, the [[Rhodope Mountains (highlighted) and the Bosporus]] thumb|The Roman province of Thrace thumb|The Byzantine thema of Thrace thumb|Map of Ancient Thrace made by Abraham Ortelius in 1585, stating both the names Thrace and Europe thumb|Thrace and the Thracian Odrysian Kingdom under [[Sitalces c. 431–424 BC, showing the territories of several Thracian tribes]] thumb|250px|right|Thrace in the Odrysian Kingdom showing several Thr