What is Orthodoxy?
The Eastern Orthodox church has existed continously from the time of Pentecost. It is the faith of the majority of Christians in the Middle East, Greece, the Balkan states, and the Russian Federation.
Until the Great Schism of the 11th century, the Orthodox Church and the Roman Catholic Church considered themselves to be the "one holy, catholic, and apostolic Church." Today, the Orthodox Church continues to uphold and teach the Christian faith as the Apostles proclaimed it from the beginning.