by the levity and worldly splendour of the Papacy, had come forward against these papal expedients at Wittenberg (1517), offering disputation and propounding certain theses. An important controversy ensued. At first Luther carried on this controversy in Latin, but presently took to German, and speedily had the people in a ferment. Charles found this dispute raging when he came from Spain to Germany. He summoned an assembly or "diet" of the empire at Worms on the Rhine. To this, Luther, who had been asked to recant his views by Pope Leo X, and who had refused to do so, was summoned. He came, and, entirely in the spirit of Huss, refused to recant unless he was convinced of his error by logical argument or the authority of Scripture. But his protectors among the princes were too powerful for him to suffer the fate of John Huss.

Here was a perplexing situation for the young Emperor. There is reason to suppose that he was inclined at first to support Luther against the Pope. Leo X had opposed the election of Charles, and was friendly with his rival, Francis I. But Charles V was not a good Machiavellian, and he had acquired in Spain a considerable religious sincerity. He decided against Luther. Many of the German princes, and especially the Elector of Saxony, sided with the reformer. Luther went into hiding under the protection of the Saxon Elector, and Charles found himself in the presence of the opening rift that was to split Christendom into two contending camps.

Close upon these disturbances, and probably connected with them, came a widespread peasants' revolt throughout Germany. This outbreak frightened Luther very effectually. He was shocked by its excesses, and from that time forth the Reforma-