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;
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