Administration; Egypt; Geography; Diocletian, Emperor of Rome, 245-313; Justinian I, Emperor of the East, 483?-565; History; Roman Empire; Politics; Law and society; Taxation; Bishops; Paganism; Orthodoxy; Heresy
Arab Conquest of Egypt; Alexandria (Egypt); Administration; Byzantine Empire; Greeks; Roman Empire; Taxation; Cities and towns; Provinces of the Roman Empire
Arianism; Arians; Council of Nicaea (1st: 325); Councils and synods; Canons; Constantine I, Emperor of Rome, d. 337; Christology; Bishops; Orthodoxy; Heresy; Hypostatic union; Council of Constantinople (1st: 381); Council of Chalcedon (451)