What were Martin Luther's 95 Theses?

The Ninety-five Theses or Disputation on the Power of Indulgences is a list of propositions for an academic disputation written in 1517 by Martin Luther, professor of moral theology at the University of Wittenberg, Germany, that started the Reformation, a schism in the Catholic Church which profoundly changed Europe.

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The "95 Theses" were written in 1517 by a German priest and professor of theology named Martin Luther. His revolutionary ideas served as the catalyst for the eventual breaking away from the Catholic Church and were later instrumental in forming the movement known as the Protestant Reformation. Luther wrote his radical "95 Theses" to express his growing concern with the corruption within the Church. In essence, his Theses called for a full reform of the Catholic Church and challenged other scholars to debate with him on matters of church policy.