High Quality Content by WIKIPEDIA articles! Orthodox Christianity is a collective term that covers the two branches of Christianity which emphasize their unbroken connection to the faith, doctrine and practices of the ancient Christian Church, and therefore call themselves "Orthodox" (from Greek: orthos + doxa, meaning correct belief). These two branches are the Eastern Orthodox Church and Oriental Orthodoxy. The adjectives "Eastern" and "Oriental" are used by outsiders to differentiate the two groups; their adherents call themselves simply "Orthodox Christians". The two groups have been divided by their disagreements over the nature of Christ since the 5th century, and they are currently not in communion with each other, but they maintain many identical doctrines, similar Church structures, and similar worship practices. There have been a number of recent talks aimed at reunification, and a great deal of agreement has been reached, but no concrete steps have been taken towards formal unity as of yet.