Comment by Hilift

I think the more interesting developments occurred after the fall of the western Roman empire. The eastern empire (Constantinople) had frequent arguments and disputes with the west over nearly everything, including Christianity. The eastern Orthodox church refers to itself as the "Catholic Church" in internal documents. After the west fell in 476, they continued to present themselves as "the" Catholic church, which was changed forever in 1200 when the largest Christian city in the world (Constantinople) was destroyed. The destruction took two years, and most of the writings, art and treasure of the richest city in the world was either destroyed, stolen, or lost.