Aristo of Pella, Melito of Sardis, Diognetus, Gospel of Peter, Apocalypse of Peter, and Epistula Apostolorum Heretical writings: Gospel of Thomas, Gospel of Truth, Apocryphon of John, and Treatise on Resurrection Secular Sources: Josephus (Jewish historian), Tacitus (Roman historian), Pliny the Younger (Roman politician), Phlegon (freed slave who wrote histories), Lucian (Greek satirist), Celsus (Roman philosopher), Mara Bar Serapion (prisoner awaiting execution), Suetonius (Roman historian), and Thallus (Roman historian)
