Easter; Holidays; Tradition; Liturgies; Churches; Calendar; Polycarp, Saint, Bishop of Smyrna; Rome (Italy); Alexandria (Egypt); Society and Church; Council of Nicaea (1st: 325); Cyril, of Alexandria, Saint, ca. 370-444
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
Roman Catholic Church; Rome; Istanbul (Turkey); Schism, Acacian, 484-519; Alexandria (Egypt); Timothy Aelurus, Patriarch of Alexandria, d. 477; Theology; Politics; Patriarchs and patriarchate; Coptic Church; Copts; Roman Empire; Excommunication