The Great Schism

The Division of the Church

The Roman Catholic Church (West): Clergy

Priests were not allowed to marry.

Services

The Roman Catholic Church's services were told in Latin.

Icons

Worship of icons of Jesus, Virgin Mary, and Saints, were accepted.

The Eastern Orthodox Church: Clergy

Priests were allowed to marry.

Services

The Eastern Orthodox Church's services were told in Greek.

Icons

They originally rejected worship of icons because the church thought it was the same as worshiping idols. Later on, it was accepted.