The burning of the "Bull"
Luther boldly declared that the "indulgences" were valueless, because no man, not even the Pope, had the power to forgive sins, and he nailed a declaration to this effect on the door of the great church at Wittenberg and sent another copy to his Archbishop. At first the Pope seems to have made light of the matter; but at length, as Luther's supporters increased in number, he issued a Bull of excommunication against Luther as a heretic, summoning him to Rome to give an account of his actions, and commanding the burning of books which he had written against Rome. We have seen before what such a Bull meant. It had meant so much in the way of setting a man outside the protection of the laws in this world, and in condemning him in the world to come, that even the great Emperor Frederic had to yield before it, cowed and vanquished. The act of the monk of Wittenberg, when he received it, was to throw it publicly on the fire kindled for the very purpose in an open space of the city!
The fire created by the burning of the Papal document set all the smouldering embers into a more furious flame than ever before. That burning of the Bull happened in 1520.
Luther did not go to Rome; but he did go, when summoned by Charles, the Emperor, and appeared before him at the Diet, or meeting, of the German States, held at Worms. Charles, after listening to his passionate pleadings, pronounced that he should receive the treatment of a heretic, but he was allowed to leave Worms and start for his home. On the journey he was taken prisoner by the Elector of Saxony, who had always been a friend to him. It is supposed that this capture was effected for his better protection. In his imprisonment he made the translation into German of the New Testament. Later, he translated the whole Bible.
It is not impossible that this capture was made with the cognisance of Charles himself. The course of events forced him to side with the Pope and oppose the reformers, but there are several incidents which show him much more anxious to make peace, if that were possible, between the two parties, than to take a leading part in the strife. He had much to attend to elsewhere. In 1526 the Protestant states of Germany had leagued themselves together for mutual support; and in the very same year the Turks had made themselves masters of the whole of Hungary, and reduced it to a Turkish province.
It was now only a year since Charles had released Francis, whom he had taken prisoner at Pavia, after making a solemn compact with him; yet Francis was already intriguing against him. Francis had induced the Pope of all people—the Pope whom Charles had so helped against Francis—to be his ally against Charles. Charles's reply was to send a strong force into Italy which sacked Rome and took the Pope prisoner. Thus he disposed of that trouble. He then again made peace with Francis on liberal terms. The Pope was soon set at liberty and returned to his see, but he seems to have learnt his lesson—namely, that Charles held a power far too great to be opposed, if he cared to put that power forth. In 1530 Charles was crowned King of Italy by the Pope and at the same time he received the Pope's consecration as Emperor.
Spread of Reformation
Meanwhile the Turks had been extending their aggressions and besieged Venice. And the Reformation, that schism, or cleaving off, which denied the authority of the Pope, spread more widely and took deeper root. Its direction of growth was chiefly northward, from Saxony which is one of the Southern German states. It worked up through Germany and so to Scandinavia and Denmark, to the Netherlands and to France. The help of those German princes who had formed themselves into a Protestant league was essential to Charles if he was to be successful in repelling the Turks, and he consented to withdraw the edicts condemning the so-called "heretics" which had been passed by his own authority.
Finally he did march against the Turks, and though he did not gain any striking victory, a peace on favourable terms was made with them in 1538, after their fleet had suffered a heavy defeat from the Venetians. For the Turks were constantly at war at various points of their wide empire. On the eastern, the Persian side, there was continual fighting, with the result that they maintained their hold on Bagdad, the capital; but it was a possession which they always had to keep strongly defended. Their pirate fleets had established themselves in Tunis and Algiers on the North African coast. Charles made two naval expeditions against them, in the first of which he succeeded tolerably, but in the second had no success at all. The Moslem corsairs remained dominant in the Mediterranean until they suffered a notable defeat in the famous battle of Lepanto in 1571.
Luther died in 1546, boldly uttering, both by speech and writing, his doctrines until the last. He lived to see them firmly grounded in Germany, and spreading north and west. On the Continent of Europe the kings were in opposition to them. In England, exceptional circumstances arose which disposed Henry VIII. to receive them with favour.