efforts of Hus and other Bohemian reformers, Utraquist Hussitism was acknowledged by the Council of Basel and was officially tolerated in the Crown of Bohemia, although other movements were still subject to persecution, including the Lollards in England and the Waldensians in France and Italian regions. Luther began by criticising the sale of indulgences, insisting that the Pope had no authority over purgatory and that the Treasury of Merit had no foundation in the Bible. The Reformation developed further to include a distinction between Law and Gospel, a complete reliance on Scripture as the only source of proper doctrine (sola scriptura) and the belief that faith in Jesus is the only way to receive God's pardon for sin (sola fide) rather than good works. Although this is generally considered a Protestant belief, a similar formulation was taught by Molinist and Jansenist Catholics. The priesthood of all believers downplayed the need for saints or priests to serve as mediators, and mandatory clerical celibacy was ended. Simul justus et peccator implied that although people could improve, no one could become good enough to earn forgiveness from God. Sacramental theology was simplified and attempts at imposing Aristotelian epistemology were resisted. Luther and his followers did not see these theological developments as changes. The 1530 Augsburg Confession concluded that "in doctrine and ceremonies nothing has been received on our part against Scripture or the Church Catholic", and even after the Council of Trent, Martin Chemnitz published the 1565–73 Examination of the Council of Trent as an attempt to prove that Trent innovated on doctrine while the Lutherans were following in the footsteps of the Church Fathers and Apostles. The initial movement in Germany diversified, and other reformers arose independently of Luther such as Zwingli in Zürich and John Calvin in Geneva. Depending on the country, the Reformation had varying causes and different backgrounds and also unfolded differently than in Germany. The spread of Gutenberg's printing press provided the means for the rapid dissemination of religious materials in the vernacular. During Reformation-era confessionalization, Western Christianity adopted different confessions (Catholic, Lutheran, Reformed, Anglican, Anabaptist, Unitarian, etc.). Radical Reformers, besides forming communities outside state sanction, sometimes employed more extreme doctrinal change, such as the rejection of the tenets of the councils of Nicaea and Chalcedon with the Unitarians of Transylvania. Anabaptist movements were especially persecuted following the German Peasants' War. Leaders within the Roman Catholic Church responded