
The Ninety-five Theses are a list of propositions written by Martin Luther that started the Protestant Reformation, a schism in the Catholic Church. Luther, a professor of moral theology at the University of Wittenberg, Germany, enclosed them in a letter to the Archbishop of Mainz on 31 October 1517, a date now commemorated annually as Reformation Day. They advance Luther's positions against the selling of plenary indulgences, certificates that...