On October 31, 1517, Martin Luther nailed the 95 Theses to the door of the Castle Church in Wittenberg, Germany to voice protest against the Catholic doctrine of indulgences. This is considered the launching point of the Reformation, and is remembered by many as Reformation Day. (On a side note, I find it interesting that so many churches today hold “Harvest Festivals” with not even a mention of the greatest revival in church history. Dan Phillips of TeamPyro fame addresses this quite well.)

Tim Challies has assembled a very complete list of links to numerous blogs and sites with remembrances and thoughts on Reformation Day and related doctrines.