geographic area, geographic region, geographical area, geographical region - a demarcated area of the Earth

Roman Empire - an empire established by Augustus in 27 BC and divided in AD 395 into the Western Roman Empire and the Eastern or Byzantine Empire; at its peak lands in Europe and Africa and Asia were ruled by ancient Rome

Byzantium - an ancient city on the Bosporus founded by the Greeks; site of modern Istanbul; in 330 Constantine I rebuilt the city and called it Constantinople and made it his capital

Byzantine - a native or inhabitant of Byzantium or of the Byzantine Empire