Major denominational families in Christianity:
Western Christianity
Eastern Christianity
Protestantism
Anabaptism
Anglicanism
Lutheranism
Reformed
(Latin Church)
Catholic Church
(Eastern Catholic Churches)
Eastern Orthodox Church
Oriental Orthodox Churches
Church of the East
Schism (1552)
Assyrian Church of the East
Ancient Church of the East
Protestant Reformation
(16th century)
Great Schism
(11th century)
Council of Ephesus (431)
Council of Chalcedon (451)
Early Christianity
Great Church
(Full communion)
(Not shown are ante-Nicene, nontrinitarian, and restorationist denominations.)

The Assyrian Church of the East is the apostolic church of Mesopotamia, Persia, India and the Far East, and is one of the modern versions of the older Church of the East, which was divided from the other apostolic churches by the Nestorian Schism during the 5th century. Today the Assyrian Church of the East has about a half a million adherents which are scattered mostly over Iraq, India, and the United States.