How did Christianity come to the Byzantine Empire?

Answer 1

The Byzantine Empire was the eastern part of the Roman Empire and became independent of Rome after the decision of Emperor Theodosius to split the empire between his two sons after his own death.

Until the fourth century, the eastern empire had far more Christians than the western empire, where Rome was the only city with a significant Christian population. Under imperial patronage and assisted by steady persecution of the pagan temples, Christianity grew rapidly in both the east and the west, throughout the fourth century. In 381, Emperor Theodosius made Christianity the official religion of empire and soon after made it a serious crime to worship the pagan gods publicly. Many of the pagans were strongly religious and it took centuries of continuous persecution before the last pagans had been eliminated and Christianity could claim to be the sole religion of the Byzantine Empire.