Eastern Orthodox Christianity originated in the Greek-speaking churches of the Byzantine Empire.
Influences on Eastern Orthodoxy include the beliefs and practices of the first Christian churches, and the language and culture of ancient Greece.
Eastern Orthodoxy's foundations lie in the apostolic churches, the ecumenical councils, and the monasteries.
Eastern Orthodoxy teaches that the meaning of Scripture is revealed in the context of the church.
The estrangement between the churches of the East and the West is reflected in the scholarship on Christian history and belief.