When such a moment of material prosperity, combined with intellectual and social change, ensues immediately on the movement previously sketched, we should expect to find religion subjected to re-examination, and placed in temporary peril. The history confirms the supposition. If we regard this crisis as embracing about two centuries and a quarter,(301) comprehending the classical revival, the opening of a new geographical world, and the great religious changes of the Reformation,—a period commencing with the Renaissance, and closed by the creation of modern philosophy;—we shall find two principal movements of unbelief for investigation, the one caused by literature, a return to a spirit of heathenism analogous to that already described in Julian; the second caused by philosophy, a revival of pantheism. The first belonged especially to the close of the fifteenth century, and had its seat for the most part in Tuscany and Rome; the second to the sixteenth, and was represented in the university of Padua. In both these movements, especially in the former, the open expression of unbelief in literature is rare, though the incidental proofs of its existence are abundant. It was a time of the dissolution of faith, not of overt attack. Unbelief was Epicurean indifference, rather than earnestness in destroying the old creed. Two of the most obvious proofs that we can select for proving the existence of a state of unbelief(302) are, the ridicule of religion expressed in the burlesque poetry of the time, and the antichristian sympathies of several distinguished men.