Question

Was split in half by the Great Schism.

Answer 1

This was the split of the Eastern and Western Churches. It happened in 1054 and is the reason why Roman Catholic and Eastern Orthodox churches started to form. This whole event happened when Charlemagne was made the Byzantine Emperor Redundant.  

I hope this helps!
~kaikers

Answer 2

The Eastern and Western churches were split apart in the Great Schism which 
happened in the year 1054.