'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
Cities and towns; Roman Empire; Military; Nabataeans; Anthony, of Egypt, Saint, ca. 250-355 or 6; Hermits; Ptolemaic dynasty, 305-30 B.C.; Monasteries; Archaeology