On This Day: Martin Luther Posts His 95 Theses

On October 31, 1517, legend has it that the priest and scholar Martin Luther approaches the door of the Castle Church in Wittenberg, Germany, and nails a piece of paper to it containing the 95 revolutionary opinions that would begin the Protestant Reformation.

In his theses, Luther condemned the excesses and corruption of the Roman Catholic Church, especially the papal practice of asking payment—called “indulgences”—for the forgiveness of sins. At the time, a Dominican priest named Johann Tetzel, commissioned by the Archbishop of Mainz and Pope Leo X, was in the midst of a major fundraising campaign in Germany to finance the renovation of St. Peter’s Basilica in Rome. Though Prince Frederick III the Wise had banned the sale of indulgences in Wittenberg, many church members traveled to purchase them. When they returned, they showed the pardons they had bought to Luther, claiming they no longer had to repent for their sins.