116. The sturdy resistance of the Bohemians to those who proposed to bring them back to the orthodox faith by arms finally attracted the attention of Europe and called forth considerable sympathy. In 1431 the last of the crusades against them came to an ignominious end, and Martin V was forced to summon a new council in order to consider the policy which should be adopted toward the heretics. The Council of Basel lasted for no less than eighteen years. At first its prestige was sufficient to enable it to dominate the pope, and it reached its greatest authority in 1434 after it had arranged a peace with the moderate party of the Bohemian heretics. The council, however, continued its hostility towards Pope Eugene IV (elected in 1431), and in 1437 he declared the council dissolved and summoned a new one to meet at Ferrara. The Council of Basel thereupon deposed Eugene and chose an anti-pope. This conduct did much to discredit the idea of a general council in the eyes of Europe. The assembly gradually dwindled away and finally in 1449 acknowledged the legitimate pope once more. [Sidenote: Council of Ferrara-Florence, 1438-1439.] [Sidenote: Union of Eastern and Western Churches.] Meanwhile the Council of Ferrara[211] had taken up the momentous question of consolidating the Eastern and Western Churches. The empire of the East was seriously threatened by the on-coming Ottoman Turks, who had made conquests even west of Constantinople. The Eastern emperor's advisers urged that if a reconciliation could be arranged with the Western Church, the pope might use his influence to supply arms and soldiers to be used against the Mohammedans. When the representatives of the Eastern Church met with the Council of Ferrara the differences in doctrine were found to be few, but the question of the headship of the Church was a most difficult one. A form of union was, nevertheless, agreed upon in which the Eastern Church accepted the headship of the pope, "saving the privileges and rights of the patriarchs of the East." [Sidenote: Results of the Council of Ferrara.] While Eugene received the credit for healing the breach between the East and the West, the Greek prelates, upon returning home, were hailed with indignation and branded as robbers and matricides for the concessions which they had made. The chief results of the council were (1) the advantage gained by the pope in once more becoming the recognized head of Christendom in spite of the opposition of the Council of Basel, and (2) the fact that certain learned Greeks remained in Italy, and helped to stimulate the growing enthusiasm for Greek literature.