On Oct. 31, 1517, Martin Luther posted the 95 Theses — the “Disputation on the Power and Efficacy of Indulgences” — to the church door in a small city called Wittenberg, Germany. This ignited the Protestant Reformation, and thus the Lutheran church officially commemorates this important anniversary on Oct. 31.

On Oct. 31, 1517, Martin Luther posted the 95 Theses — the “Disputation on the Power and Efficacy of Indulgences” — to the church door in a small city called Wittenberg, Germany. This ignited the Protestant Reformation, and thus the Lutheran church officially commemorates this important anniversary on Oct. 31.