Original sentence: The citizens of Byzantium in the Antiquity,.The population of the Byzantine Empire, including all separate ethnic and tribal groups living there
Edited sentence: The  of Byzantium in the Antiquity, having to do with the successor state of the Roman Empire, which is named nowadays Byzantine Empire, which is considered to be founded when the Roman Empire moved its capital to Constantinople (330 AD).The population of the Byzantine Empire, including all separate ethnic and tribal groups living there, mainly speaking the Greek language and having strong Greek national conciousness