Photograph: This is an icon of the Council of Nicaea of 325 AD, holding up the Creed as it was adjusted in 381 AD by the Council of Constantinople. It is a symbol of the unified Church. Photo credit: Unknown | Public Domain.

Introduction

Jesus prayed for his followers to be united and loving towards one another (John 13 - 17). The selection of perspectives on church history in this section has been guided by the concerns raised by the Assyrian Church of the East splitting off from the rest of the church at the Third Ecumenical Council, the Oriental Orthodox Churches splitting at the Fourth Ecumenical Council, the Catholic-Orthodox split at 1054, and the Protestant movement beginning with Martin Luther in Germany.

 
 

Church Unity: Topics:

The pages on Church Unity concern the Assyrian Church of the East, which separated over the Council of Ephesus in 431, the Oriental Orthodox Churches, which separated over the Council of Chalcedon of 451, the Catholic-Orthodox split of 1054, and the Protestant Churches beginning 1517.

The Church: Topics: