Church of the EastThe Church of the East ( ʿĒḏtā d-Maḏenḥā) or the East Syriac Church, also called the Church of Seleucia-Ctesiphon, the Persian Church, the Assyrian Church, the Babylonian Church or the Nestorian Church, was an Eastern Christian church of the East Syriac Rite, based in Mesopotamia. It was one of three major branches of Eastern Christianity that arose from the Christological controversies of the 5th and 6th centuries, alongside the Oriental Orthodox Churches and the Chalcedonian Church.
PentarchyPentarchy (from the Greek Πενταρχία, Pentarchía, from πέντε pénte, "five", and ἄρχειν archein, "to rule") is a model of Church organization formulated in the laws of Emperor Justinian I (527-565) of the Roman Empire. In this model, the Christian Church is governed by the heads (patriarchs) of the five major episcopal sees of the Roman Empire: Rome, Constantinople, Alexandria, Antioch, and Jerusalem.
Babai the GreatBabai the Great (ܒܵܒܲܝ ܪܲܒܵܐ , c. 551 – 628) was an early church father of the Church of the East. He set several of the foundational pillars of the Church, revived the monastic movement, and formulated its Christology in a systematic way. He served as a monastic visitor and coadjutor with Mar Aba as unofficial heads of the Church of the East (often called the "Nestorian Church" by those in the West) after Catholicos Gregory until 628 AD, leaving a legacy of strong discipline and deep religious Orthodoxy.
Ancient Church of the EastThe Ancient Church of the East is an Eastern Christian denomination. It branched from the Assyrian Church of the East in 1964, under the leadership of Mar Toma Darmo (d. 1969). It is one of three Assyrian Churches that claim continuity with the historical Church of the East (the ancient Patriarchal Province of Seleucia-Ctesiphon), the others being the Assyrian Church of the East and the Chaldean Catholic Church. Since 1969, the see of the Ancient Church of the East is headquartered in Baghdad.
East Syriac RiteThe East Syriac Rite or East Syrian Rite, also called the Edessan Rite, Assyrian Rite, Persian Rite, Chaldean Rite, Nestorian Rite, Babylonian Rite or Syro-Oriental Rite, is an Eastern Christian liturgical rite that employs the Divine Liturgy of Saints Addai and Mari and the East Syriac dialect as its liturgical language. It is one of two main liturgical rites of Syriac Christianity, the other being the West Syriac Rite (Syro-Antiochene Rite).
Four Marks of the ChurchThe Four Marks of the Church, also known as the Attributes of the Church, describes four distinctive adjectives of traditional Christian ecclesiology as expressed in the Niceno-Constantinopolitan Creed completed at the First Council of Constantinople in AD 381: "[We believe] in one, holy, catholic, and apostolic Church.
Early ChristianityEarly Christianity, or Paleochristianity, describes the historical era of the Christian religion up to the First Council of Nicaea in 325. Christianity spread from the Levant, across the Roman Empire, and beyond. Originally, this progression was closely connected to already established Jewish centers in the Holy Land and the Jewish diaspora. The first followers of Christianity were Jews who had converted to the faith, i.e. Jewish Christians. Early Christianity contains the Apostolic age and is followed by, and substantially overlaps with, the Patristic era.
Full communionFull communion is a communion or relationship of full agreement among different Christian denominations or Christian individuals that share certain essential principles of Christian theology. Views vary among denominations on exactly what constitutes full communion, but typically when two or more denominations are in full communion it enables services and celebrations, such as the Eucharist, to be shared among congregants or clergy of any of them with the full approval of each.
History of ChristianityThe history of Christianity concerns the Christian religion, Christian countries, and the Christians with their various denominations, from the 1st century to the present. Christianity originated with the ministry of Jesus, a Jewish teacher and healer who proclaimed the imminent Kingdom of God and was crucified AD 30–33 in Jerusalem in the Roman province of Judea. His followers believe that, according to the Gospels, he was the Son of God and that he died for the forgiveness of sins and was raised from the dead and exalted by God, and will return soon at the inception of God's kingdom.
AutocephalyAutocephaly (ɔːtəˈsɛfəli; from αὐτοκεφαλία, meaning "property of being self-headed") is the status of a hierarchical Christian church whose head bishop does not report to any higher-ranking bishop. The term is primarily used in Eastern Orthodox and Oriental Orthodox churches. The status has been compared with that of the churches (provinces) within the Anglican Communion. In the first centuries of the history of the Christian church, the autocephalous status of a local church was promulgated by canons of the ecumenical councils.
