Abstract

The study of the historical path of the development of Christianity from the time of its occurrence and to this day makes it possible to conclude that at all stages of the existence of this religion for her was characterized by the division into separate directions and branches, which led to a struggle between them. The whole history of Christianity is a multitude of divisions, conflicts and heresies. But there is no doubt that the evolutionary process of the development of Christianity is followed by the reverse flow - the desire to unite into a single Christ's church. Representative of this trend was the Roman Catholic Church. In the XI-XIII centuries. it reached the peak of its power and began its unifying activity in the East.