Answer:
Step-by-step explanation:
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 resulting split divided the European Christian church into two major branches: the Western Roman Catholic Church and the Eastern Orthodox Church. This split is known as the Great Schism, or sometimes the “East-West Schism” or the “Schism of 1054.”