The object of this thesis is to trace the introduction of Calvinism into the official and unofficial formularies of the Church of England during the Reformation period. Calvinism is defined as any distinctive theological teaching advocated by John Calvin, the leader of the Reformed Church during the middle of the sixteenth century. The official formularies were the confessional statements and prescribed forms of worship ordered to be used in the established Church by the English monarch. The unofficial formularies were theological writings approved by Convocation of the English clergy. While used in the Church, they had neither the approval of the crown nor that of the English Parliament. They are important for the topic inasmuch as they pr...