Pope Damasus I (; c. 305 – 11 December 384) was the bishop of Rome from October 366 to his death. He presided over the Council of Rome of 382 that determined the canon or official list of sacred scripture. He spoke out against major heresies in the church (including Apollinarianism and Macedonianism) and encouraged production of the Vulgate Bible with his support for Jerome. He helped reconcile the relations between the Church of Rome and the Church of Antioch, and encouraged the veneration of martyrs.