because
The Roman Empire split into two pieces, the Western Empire whose capitol was still in Rome, and the Eastern with its capitol in Constantinople, modern Istanbul.
The Reformation.
Rome is 854 miles away from Constantinople
Constantinople was based on the Christian religion and Rome was against it.
Because the Muslims invaded Constantinople so they took over. Your welcome hope that this was helpful.
Constantinople was approximately 800 miles east from Rome.
He basically split the empire in half east and west. The east's capital was Rome and the west's was the city later called Constantinople.
Rome
Both Rome and Constantinople had written laws. Emperor Justinian of Constantinople wrote the Corpus Julius Civilius which was based off the Roman written codes. Also Rome and Constantinople both practiced Christianity. Although Rome followed the Roman Catholicism and Constantinople followed the Eastern Orthodox Church, these are still from the same roots of the belief of Christianity. Also the idea of domes were used by both Rome and Constantinople. Rome had built the "Pantheon" and Constantinople built the Hagia Sophia. Emperor Justinian of Constantinople built the domes even bigger by using the quadrangle underneath the domes. Also both Rome and Constantinople were involved in trade and cultural diffusion with other countries.
Rome and Constantinople became centers of Christianity. Rome became the center of Western Catholic Christianity and Constantinople became the center of Eastern, Orthodox Christianity
The capital of the Roman empire was Rome and later Ravinia, in the West. In the East it was Constantinople.
The spread of Christianity had political ramifications for the Roman Empire. The empire split into two, Constantinople to the east and Rome to the west