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
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