Peter Caroli accused Calvin of “Arianism.” The accusation of “Arianism” against Calvin is ascribed to the inadequacies of the first edition of the Institutes of the Christian Religion.In May, 1537, Caroli brought the charge of Arianism against Farel and Calvin at a synod in Lausanne because they avoided the metaphysical terms Trinity and Person in the Confession. When Caroli asked Calvin to sign..