On July 16, 1054, Patriarch of Constantinople Michael Cerularius was excommunicated, starting the “Great Schism” that created the two largest denominations in Christianity—the Roman Catholic and Eastern Orthodox faiths. (http://www.nationalgeographic.org/thisday/jul16/great-schism/)
For obvious reasons, recent events have brought this subject to the front of my mind. I'm interested in learning what steps (if any) were taken to prevent it? What were the consequences for the average citizens of Rome and Constantinople?
There are some previous answers that might be helpful here:
Why did the Patriarch of Rome specifically become the most powerful patriarch prior to the Great Schism? by u/Libertat
The reasons for the split between Catholicism and Protestantism is fairly well known and discussed. The split between Catholicism and Eastern Orthodoxy, however, is often overlooked. Why and when did this split occur? What are the main similarities and differences between the two? by u/talondearg and u/MaxMongoose