The cantons which entered into this concordat were Bern, Zurich, Luzern, Solothurn, St. Gallen, Aargau, and Thurgau. This league was considered by its opponents to be a violation of the Swiss Confederation, though the champions of it would probably have pleaded its purely defensive character. But the Roman Catholic party felt themselves justified in retaliation; and they formed, in November, 1832, an opposition league called the Sarnerbund. This Bund steadily set itself to oppose reform; but the men of Schwytz, who were at that time its leading spirits, did not confine themselves to argument, but invaded Luzern in 1833. Thereupon the Diet interfered, occupied Schwytz, and dissolved the Sarnerbund. The reforming party now began to spread their ideas, and the new University of Zurich, which was founded at this time, became a fresh centre of intellectual life. The fugitives from other countries gathered more and more to Switzerland, and the excitement roused in that country by Mazzini's expedition to Savoy led to the foundation of a society called Young Europe. The great object to which the reforming party in Switzerland now devoted its attention was the breaking down of the authority of the clergy, and the placing education and marriage under the State instead of under the Church. Their scheme was embodied in fourteen articles which excited the indignation of the Roman Catholic cantons; on the appeal of the Roman Catholics to Gregory XVI., he declared these articles heretical; and a little later Louis Philippe intervened to prevent the canton of Bern from enforcing them in the Roman Catholic district of the Jura. The struggle had now risen to great bitterness; and, at this period, the bitterness was much intensified by the domestic character of the quarrel. The Radical party and the Roman Catholic party struggled fiercely against each other in several of the cantons; and there were changes in the government, backwards and forwards, which temporarily affected the contest. The two changes, however, which were of a permanent character, and which had a vital effect on the destinies of Switzerland, were that which took place in 1838 in Bern and that in Luzern in 1841. Bern, though reckoned, on the whole, among the Liberal cantons, in consequence of its undoubted Protestantism, was yet under the control of a timid and moderate party. This may have arisen from the fact of its important position in the Confederation; for though Bern divided at this time with Luzern and Zurich the honour of being the meeting-place of the Diet, yet it seems to have assumed, even at this period, a certain superior and initiative tone.