An episode of history I had never heard about. 100-300,000 peasants killed.

As someone who reads a lot about the early history of religion, the most interesting part of this for me was the role of Martin Luther, the founder of Protestantism: "In Against the Murderous, Thieving Hordes of Peasants, Luther condemned the violence as the devil's work and called for the aristocrats to put down the rebels like mad dogs". My study of history of Christianity had left Protestantism relatively unscathed up to now. Well, no longer.