_1521, May 8._ _An edict of the Emperor_ (_Charles V_) forbids the printing, selling, buying, owning, copying, or reading any of the writings, already condemned by the pope, of “that stubborn heretic Martin Luther,” and any further works that said Luther may produce. The prohibition is made to cover also all other books, tracts, and pictures which are antagonistic to the Faith of the Church and to good morality, and all writings which are designed to bring into disrepute the pope, or the other dignitaries of the Church, or princes, universities, members of faculties, or other persons of repute. The penalties are those previously ordered by the Church, the ban and the interdict.[75] It is further ordered that thereafter no one shall print or sell books having to do with the Bible, or with matters of faith, without a specific permit from the bishop or from the theological faculty of the proper university. The responsibility for the framing of this imperial ordinance rested with Aleander[76]. This Edict of Worms secured acceptance and enforcement only in certain portions of Germany. _1523._ _The Imperial Diet of Nuremberg_, in place of making full confirmation of the Edict of Worms, simply orders that no new writings shall be printed or sold until they have been tested and approved by trustworthy men. The printing and selling of libellous books (_libelli famosi_) is forbidden under heavy penalties.[77] _1530._ _The Diet of Augsburg_ receives, through Campeggio, a brief from Pope Leo ordering strong measures to be taken for the enforcement of the Bull and of the provisions of the Decree of Worms against Lutheran writings. The Pope calls for imperial regulations to secure the destruction of all copies of such books together with the punishment of all persons concealing copies, and the rewarding of those who give information of concealed heretical books. The Diet declines however to do more than to renew the regulations for the examination of books to be printed and the licensing of those that can be approved.[78] _1549–1550._ _A Provincial Synod held at Cologne_ under the instructions of the Archbishop, Adolphus von Schauenburg, issues an edict for the protection more particularly of “simple and unlearned pastors who are not competent to distinguish pernicious literature from sound teaching,” forbidding all the faithful under penalty of the Anathema, from reading the works of Luther, Bucer, Calvin, Œcolampadius, Bullinger, Lambert, Melanchthon, Corvinus, Sarcerius, Brentius, and some dozen other heretical writers. The edict promises the publication shortly of a comprehensive catalogue of heretical and pernicious literature, but such catalogue was never prepared. This preliminary list may be classed as the first German Index of prohibited books, the next in order of date being that published in 1582, in Munich.