system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:What are the main differences between Orthodox Church and Catholic Church?
gpt
The biggest difference is that the Catholic church is organized around a single hierarchy, headed by the Pope. The Orthodox church is made of several autonomous groups that communicate with one another, each directed by bishops and patriarchs (the term is "autocephalous").

Both denominations agree on most subjects, but since they split in the Middle-Ages, they have grown different practices and customs.

Orthodoxes can mostly be found in Eastern Europe, the Balkans, Greece, Russia, and places with a significant diaspora of these places.

Catholics are more numerous; they can mostly be found in central and southern Europe and their former colonies, most notably Latin America and parts of Africa.