when did the eastern and western churches split
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 Eastern Orthodox and Roman Catholic churches, which has lasted since the 11th century.[1] It is not to be confused with the Western Schism which lasted from 1378 to 1417 (which is also sometimes called the "Great" Schism).