Schism of 1054 or sometimes Western schism. In 1054 a schism between the Roman Catholic church and the Greek Orthodox church started. This schism was both Theological and political. Some of the theological differences included?
1. The pope as the leader of the churches.
2. Leavened or unleavened bread used in the Eucharest.
The main political reason was the pope wanted help from Byzantium in fighting against the Norman invasion of Italy.
