Optional Memorial of St. Hilary of Poitiers, 315-368; as bishop of Poitiers, France, he battled Arianism, which denied the divinity of Christ; the emperor ordered all bishops of the west to sign a condemnation of Athanasius--the great defender of the faith in the east--but Hilary refused, and was exiled to Phrygia; he attempted a debate with the heretical bishop who had exiled him, but he was, instead, sent home, where his people welcomed him