Cities and towns; Christian converts; Byzantine Empire; Greek language; Coptic language; Copts; Persecution; Politics; Roman Empire; Arab Conquest of Egypt; Arabic language; Monasteries; Coptic Church; Muslim converts from Christianity;
Coptic Church; Historians; Patriarchs and patriarchate; Priests; Bishops; Monks; Eusebius, of Caesarea, Bishop of Caesarea, ca. 260- ca. 340; Mark, Saint; Ethiopian Orthodox Church; Arab Conquest of Egypt; Liturgies
Patriarchs and patriarchate; Abbots; Ethiopia; Haile Selassie I, Emperor of Ethiopia, 1892-1975; Excommunication; Exile; Wādī al-Naṭrūn (Egypt); World Council of Churches; Sadat, Anwar, 1918-1981; Assassination
Patriarchs and patriarchate; Monks; Monasteries; Coptic Church; Ethiopian Orthodox Church; Oriental Orthodox churches; Society and Church; Civil service; Administration; World Council of Churches