The Great Schism

The Roman Catholic Church

No married priests were allowed in the Roman Catholic Church and the services were in Latin.
The Roman Pope was supreme church authority in the Roman Catholic Church.
The Roman Catholic Church accepted the view that the Holy Spirit combines both Father and Son.

The Eastern Orthodox Church

The married priests were allowed in the Eastern Orthodox Church and the services were in Greek.
The Eastern Orthodox Church rejected supremacy of Roman Pope over local leaders.
THe Eastern Orthodox Church maintained supremacy of the father in the Trinity.