Patriarchs and patriarchate; Catechetical School of Alexandria; Persecution; Diocletian, Emperor of Rome, 245-313; Martyrs; Society and Church; Paganism; Conversion - Christianity
Roman Empire; Eusebius, of Caesarea, Bishop of Caesarea, ca. 260- ca. 340; Persecution; Churches; Jerusalem; Alexandria (Egypt); Fayyūm (Egypt); Patriarchs and patriarchate; Christianity