The basis of the original Orthodox community is the Creed of Constantinople, written in 381. It is a separation from Christianity, which took place mainly in the eastern part of the then Roman Empire. From about the 5th century A.D. onwards, the ancient Oriental Christians separated from the Roman imperial church. It took about 600 years until the official separation of the Greek-influenced Christians from the Latin ones.
Understanding of faith
A central expression of self-understanding is the "union of all being, destined to unite in itself all that is, God and creation". In contrast to the Roman Catholic Church, Orthodox reject the Pope as the supreme, infallible authority. Likewise, the Immaculate Conception of Mary and Purgatory are not part of the doctrine. In addition to the Bible, texts of the Church Fathers play a far greater role. Instead, saints, relics or images are hardly ever venerated.
Orthodox people almost always belong to a self-governing church organization, whose totality sees itself as an inseparable unit. Thus, although there are numerous autocephalous churches, their followers always speak of the "Church of Orthodoxy" as the overall Orthodox confession. This is also the basis of a strong sense of unity, which is why the followers of the individual churches also see themselves as an indivisible unity. All Orthodox Churches orient themselves, as it were, according to the decisions of the 7 ecumenical councils (325 to 787 A.D.). Against this background, even designations such as "Russian Orthodox" or "Greek Orthodox" are to be seen primarily in an organizational sense and do not imply a different understanding of faith.