'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