Answer:
During the 8th and 9th centuries, the two seats of Christianity entered a conflict because of the artistic works of Christ and his life, with one side being for it and the other against it.
Explanation:
Until the period of the 8th and 9th centuries, Christianity was united, though it had two seats, one in each of the capitals of the former Western Roman Empire and in Byzantium. Tensions started to build up in this period though, and the reason has been the artistic works of the life of Christ, Vergin Marry, the disciples, saints, etc.
In Byzantium, in this period, the artistic works of the life of Christ became very popular, with a lot of religious objects using them to decorate the interior, while the people seemed to appreciate it a lot. Rome was angered by this and protested, being very aggressive in its positions, but Constantinople stood in support of its people and religious authorities. This actually led to the separation of Christianity into two branches, Eastern Orthodox and Catholic.