Saint Antipas of Pergamum was ordained by John the Apostle Antipas as bishop of Pergamon during the reign of the Roman emperor Domitian. The traditional account goes on to say Antipas was martyred in ca. 92 AD by burning in a brazen bull-shaped altar to cast out demons worshiped by the local population. There is a tradition of oil ("manna of the saints") being secreted from the relics of Saint Antipas. On the calendars of Eastern Christianity, the feast day of Antipas is April 11. Saint Antipas is invoked to assist in toothache.