Answer: The split of the church
Schism of 1054
The East–West Schism (also the Great Schism or Schism of 1054 ) is the break of communion since the 11th century between the Catholic Church and Eastern Orthodox Church. The schism was the culmination of theological and political differences which had developed during the preceding centuries between Eastern and Western Christianity.
Jul 16 1054 CE: Great Schism. On July 16 1054 Patriarch of Constantinople Michael Cerularius was excommunicated from the Christian church based in Rome Italy. Cerularius's excommunication was a breaking point in long-rising tensions between the Roman church based in Rome and the Byzantine church based in Constantinople (now called Istanbul).
The Great Schism of 1054 marked the first major split in the history of Christianity separating the Orthodox Church in the East from the Roman Catholic Church in the West. Until this time all of Christendom existed under one body but the churches in the East were developing distinct cultural and theological differences from those in the West.
East-West Schism also called Schism of 1054 event that precipitated the final separation between the Eastern Christian churches (led by the patriarch of Constantinople Michael Cerularius) and the Western church (led by Pope Leo IX ). The mutual excommunications by the pope and the patriarch in 1054 became a watershed in church history.
The religious distribution after the East-West Schism between the churches of the Byzantine Empire and the Holy Roman Empire in 1054 CE. The church split along doctrinal theological linguistic political and geographical lines and the fundamental breach has never been healed with each side sometimes accusing the other of having fallen into heresy a...