Answer:
The emperor Constantine moved to the new center, and renamed the city Constantinople.
Explanation:
The emperor Constantine moved to the new center, and renamed the city Constantinople. As Christianity spread, it developed religious centers in both Rome and Constantinople, and as the two areas grew more politically independent, Christian practices and beliefs also split in different directions.
That's Rationalization my friend.
Hope this helps :D
Answer:
They were in charge of the trade route in Europe and asia