Answer:
Constantine moved the capital to Byzantium and changed the religious character of the empire from pagan to Christian. This made it different from the Roman Empire.
Despite being the leader of the entire Roman Empire, he made important changes that marked the beginning of what would eventually be called the Byzantine Empire
It also benefited greatly from a stronger administrative center and internal political stability, as well as great wealth compared with other states of the early medieval period.
Explanation:
The Byzantine Empire was the eastern continuation of the Roman Empire after the Western Roman Empire's fall in the fifth century CE. It lasted from the fall of the Roman Empire until the Ottoman conquest in 1453.
Continuities: The Byzantine Empire initially maintained many Roman systems of governance and law and aspects of Roman culture. The Byzantines called themselves "Roman". The term "Byzantine Empire" was not used until well after the fall of the Empire.
Changes: The Byzantine Empire shifted its capital from Rome to Constantinople, changed the official religion to Christianity, and changed the official language from Latin to Greek.
