This is extremely relevant and very important both in theoretical and practical dimensions, the problem was at the center of the discussions of the international scientific conference, which took place on May 6-7, 1996 in Lviv. The mentioned conference was one of the main events within the framework of the VI International Round Table "History of Religions in Ukraine", at its meetings 3-6, as well as on issues of outstanding dates in the history of the development of religious life in Ukraine on the 8th of May: "400 "the anniversary of the Brest Union", and "400th anniversary of the birth of Peter Mohyla"
