495 years ago today, on 31 October 1517, Martin Luther spoke out against the corrupt practices of the Roman Catholic Church at the time, by nailing his Ninety-Five Theses to the door of the Castle Church of Wittenberg. And so began the Reformation.
Later in life, Luther wrote a song to recount the history of the Reformation. Sadly, the original recording has been lost, but in recent years it has been carefully reconstructed by scholars, and this is the result: