Martin Luther's 95 Theses

Martin Luther's 95 Theses, posted on October 31, 1517, at the Castle Church in Wittenberg, marked the onset of the Protestant Reformation. Addressing issues such as the sale of indulgences, the pope's authority in granting forgiveness, and the harm caused to believers, the Theses emphasize the necessity of repentance in the Christian life. Their widespread distribution, fueled by the invention of printing, transformed the Theses into a powerful manifesto that catalyzed significant social and political change across Europe.