Council of Nicaea (1st: 325); Canons; Arabic language; Greek language; Latin language; Constantine I, Emperor of Rome, d. 337; Nestorians; Melchite Church; Syriac language; Theology
Latin language; Christianity; Georgian language; Armenian language; Syriac language; Arabic language; Ethiopic language; Coptic language; Nubian languages; History; Law and society; Music; Archaeology; Art; Liturgies; Geography; Literature
'Amr ibn al-'As; Arab Conquest of Egypt; Arabs; Asceticism; Alexandria; Cairo (Egypt); Byzantine Empire; Coptic Church; Heraclius, Emperor of the East, ca. 575-641; History; Chalcedonian Church; Melchite Church; Orthodoxy