This reference contains the liturgical terms used by the Orthodox and Eastern Christian Churches. During its history, Orthodoxy has divided into independent national and social groupings, such as Syrian, Russian, Serbian, Bulgarian, Romanian, Greek and Georgian, all recognizing the primacy of the Patriarch of Constantinople. Other churches that variously refused to accept the decisions of the Coucils of Ephesus (431 AD) and Chalcedon (451 AD) are...