It is difficult to say what would have been the fate of the Reformation, and the liberties of the Empire, had not the formidable power of Austria declared against them. This, however, appears certain, that nothing so completely damped the Austrian hopes of universal monarchy, as the obstinate war which they had to wage against the new religious opinions. Under no other circumstances could the weaker princes have roused their subjects to such extraordinary exertions against the ambition of Austria, or the States themselves have united so closely against the common enemy. The power of Austria never stood higher than after the victory which Charles V. gained over the Germans at Muehlberg. With the treaty of Smalcalde the freedom of Germany lay, as it seemed, prostrate for ever; but it revived under Maurice of Saxony, once its most formidable enemy. All the fruits of the victory of Muehlberg were lost again in the congress of Passau, and the diet of Augsburg; and every scheme for civil and religious oppression terminated in the concessions of an equitable peace. The diet of Augsburg divided Germany into two religious and two political parties, by recognizing the independent rights and existence of both. Hitherto the Protestants had been looked on as rebels; they were henceforth to be regarded as brethren -- not indeed through affection, but necessity. By the Interim*, the Confession of Augsburg was allowed temporarily to take a sisterly place alongside of the olden religion, though only as a tolerated neighbour. To every secular state was conceded the right of establishing the religion it acknowledged as supreme and exclusive within its own territories, and of forbidding the open profession of its rival. Subjects were to be free to quit a country where their own religion was not tolerated. The doctrines of Luther for the first time received a positive sanction; and if they were trampled under foot in Bavaria and Austria, they predominated in Saxony and Thuringia. But the sovereigns alone were to determine what form of religion should prevail within their territories; the feelings of subjects who had no representatives in the diet were little attended to in the pacification. In the ecclesiastical territories, indeed, where the unreformed religion enjoyed an undisputed supremacy, the free exercise of their religion was obtained for all who had previously embraced the Protestant doctrines; but this indulgence rested only on the personal guarantee of Ferdinand, King of the Romans, by whose endeavours chiefly this peace was effected; a guarantee, which, being rejected by the Roman Catholic members of the Diet, and only inserted in the treaty under their protest, could not of course have the force of law. * A system of Theology so called, prepared by order of the Emperor Charles V. for the use of Germany, to reconcile the differences between the Roman Catholics and the Lutherans, which, however, was rejected by both parties -- Ed.