the various differences between east and west churches resulted in this in the year 1054
East–West Schism The Eastâ€“West Schism, also called the Great Schism and the Schism of 1054, was the break of communion between what are now the Catholic Church and Eastern Orthodox churches, which has lasted since the 11th century.[1] The Schism was the culmination of theological and political differences between the Christian East and West which had developed over the preceding centuries, and marked the first time since the Edict of Milan that there was more than one body considered by secular authorities to constitute the Christian Church.