Original sentence: The Eastern Orthodox Church is a Christian body whose adherents are largely based in Eastern Europe and the Middle East, with a growing presence in the western world.This stems from the historical identification of Orthodoxy with the Greek-speaking Byzantine Empire in the east, as opposed to the Latin-speaking Roman Catholic Church in the west
Edited sentence: After the fall of Constantinople to the Ottomans, all Byzantine power was ceded except the one of the patriarch of Constantinople and the Eastern Orthodox Church.The medieval Eastern Orthodox Church survives until the present day under the name Greek Orthodox Church, whose patriarch still resides in Constantinople (now Istanbul) and is supposedly the head of all Orthodox bodies worldwide.The name Eastern Orthodox Church originally refers to the church of the Byzantine Empire after the Great Schism of 1054.This stems from the historical identification of Orthodoxy with the Greek state of the Byzantine Empire in the east, as opposed to the Latin-speaking Roman Catholic Church in the west.Today the term "Eastern Orthodox Church" however, refers to the wider Orthodox Christian body whose adherents are largely based in Eastern Europe and the Middle East, with a growing presence in the western world