Conversation so far:
what was the form of christianity practiced in the byzantine empire after 1054
1054 CE saw the East West Schism, the formal declaration of institutional separation between east, into the Orthodox Church, and west, into the Catholic Church.
how many baptised catholics does the catholic church have
There are approximately 1.3 billion baptised Catholics worldwide as of 2017

Question: where are the chirstian beliefs found
Self-contained rewrite: where are the christian beliefs of catholicism found