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;
Cities and towns; Nile River; Bishops; History; Council of Ephesus (431); Arab Conquest of Egypt; Coptic Church; Heresy; Taxation; Byzantine Empire; Islam; Copts; Churches; Crusades - 13th-15th centuries; Textiles; Manuscripts; Greek Orthodox Church