Christian theologyChristian theology is the theology of Christian belief and practice. Such study concentrates primarily upon the texts of the Old Testament and of the New Testament, as well as on Christian tradition. Christian theologians use biblical exegesis, rational analysis and argument.
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.
PatristicsPatristics or patrology is the study of the early Christian writers who are designated Church Fathers. The names derive from the combined forms of Latin pater and Greek patḗr (father). The period of the Church Fathers, commonly called the Patristic era, is generally considered to run from the end of New Testament times or end of the Apostolic Age (AD 100) to either AD 451 (the date of the Council of Chalcedon) or to the Second Council of Nicaea in 787.
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.
EdessaEdessa (ɪˈdɛsə, ; Édessa) was an ancient city (polis) in Upper Mesopotamia, founded during the Hellenistic period by King Seleucus I Nicator (305-281), founder of the Seleucid Empire. It later became capital of the Kingdom of Osroene, and continued as capital of the Roman province of Osroene. In Late Antiquity, it became a prominent center of Christian learning and seat of the Catechetical School of Edessa. During the Crusades, it was the capital of the County of Edessa.
Biblical canonA biblical canon is a set of texts (also called "books") which a particular Jewish or Christian religious community regards as part of the Bible. The English word canon comes from the Greek κανών kanōn, meaning "rule" or "measuring stick". The use of the word "canon" to refer to a set of religious scriptures was first used by David Ruhnken, in the 18th century. Various biblical canons have developed through debate and agreement on the part of the religious authorities of their respective faiths and denominations.
Valentinus (Gnostic)Valentinus (Greek: Οὐαλεντῖνος), also spelled Valentinius; AD 100 – 180, was the best known and, for a time, most successful early Christian Gnostic theologian. He founded his school in Rome. According to Tertullian, Valentinus was a candidate for bishop but started his own group when another was chosen. Valentinus produced a variety of writings, of which for the most part only fragments quoted by his opponents survive. However, it has recently been argued that Valentinus's lost letter to Agathapous, quoted by Clement of Alexandria, is in fact Letter 366 of Pseudo-Basil.
OsroeneOsroene or Osrhoene (Qz'ri:ni:; Ὀσροηνή) was an ancient region and state in Upper Mesopotamia. The Kingdom of Osroene, also known as the "Kingdom of Edessa" (ܡܠܟܘܬܐ ܕܒܝܬ ܐܘܪܗܝ / "Kingdom of Urhay"), according to the name of its capital city (now Şanlıurfa, Turkey), existed from the 2nd century BC, up to the 3rd century AD, and was ruled by the Abgarid dynasty. Generally allied with the Parthians, the Kingdom of Osroene enjoyed semi-autonomy to complete independence from the years of 132 BC to AD 214.
Assyrian peopleAssyrians are an indigenous ethnic group native to Assyria, a geographical region in West Asia. Modern Assyrians descend from their ancient counterparts, originating from the ancient indigenous Mesopotamians of Akkad and Sumer, who first developed the civilisation in northern Mesopotamia (modern-day Iraq) that would become Assyria in 2600 BCE. Modern Assyrians may culturally self-identify as Syriacs, Chaldeans, or Arameans for religious, geographic, and tribal identification.
PeshittaThe Peshitta (ܦܫܺܝܛܬܳܐ or ܦܫܝܼܛܬܵܐ ) is the standard version of the Bible for churches in the Syriac tradition, including the Maronite Church, the Chaldean Catholic Church, the Syriac Catholic Church, the Syriac Orthodox Church, the Malabar Independent Syrian Church (Thozhiyoor Church), the Syro-Malankara Catholic Church, the Assyrian Church of the East and the Syro-Malabar Church.
