'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
Alexandria (Egypt); Monasteries; History of the Patriarchs; Patriarchs and patriarchate; Persian Empire; Copyists; Arabic language; Synaxarion; Manuscripts; Scholars; Chalcedonian Church; Pachomian monasticism
Council of Nicaea (1st: 325); Councils and synods; Canons; Roman Empire; Theology; Christology; Christianity; Arius; Arians; Arianism; Origen; Orthodoxy; Heresy; Jesus Christ; Hypostatic union; Holy Roman Empire; Constantine I, Emperor of Rome, d....
Patriarchs and patriarchate; Saints; Athanasius, Saint, Patriarch of Alexandria, d. 373.; Alexandria (Egypt); Arianism; Paganism; Jews; Apollinarius, Bishop of Laodicea, d. ca. 390; Roman Empire; Orthodoxy; Theology