It was when the Bishop of Rome elevated himself to Pope thus creating the schism in 1054 where the other four Bishops refused to recognized the "infallibility of the Pope," (as I understand it, it is when the Pope speaks as God on earth, therefore, he cannot err.)
This was considered blasphemous by the other Bishops.
Any thoughts on this?
You need to brush up, or more accurately, actually learn factual history.
well for starters i’m orthodox.
though i’d have to astrix your comment... strictly speaking antioch had split earlier and returned to the 3 sees