The Greek Orthodox Church (GOC) is a branch of Eastern Orthodoxy, which formally broke with the Western (or Roman Catholic) Church in AD 1054. Even though the Greek Orthodox Church is separate from Catholicism, many of its practices are similar, such as the veneration of saints. The term orthodox means that they believe they hold the correct opinion on true Christianity. The Greek Orthodox Church claims to trace its roots to the apostles and early church fathers, calling itself “the Mother Church of Christendom.” While they do hold to many foundational truths of Christianity, such as the Trinity, they have also added many practices and beliefs at variance with biblical Christianity.