It really wasn't obvious at the time, though and it took at least 100 years or more for the split to become permanent. e.g. There is currently a schism between

It really wasn't obvious at the time, though and it took at least 100 years or more for the split to become permanent. e.g. There is currently a schism between the Orthodox Church and the Russian Orthodox Church which technically is not that different. Does that mean that the Russian Church is no longer Orthodox?