On this evening, exactly 491 years ago, Martin Luther nailed his "95 Theses" to the door of the Castle Church in Wittenberg. The "95 Theses" concerned the sale of indulgences (forgiveness of sin in return for a certain amount of money) which, given his shift in theology, particularly his doctrine of salvation, Luther thought was reprehensible.
I have sort of resisted saying that this act "started" the Reformation because I usually like to give some credit to "pre-Reformation" reformers like Hus and Wycliffe. Nevertheless, Luther's protest against the sale of indulgences was the spark that was needed that set off the powder-keg in the 16th century called the Reformation.
And so, this evening, I think it is good to remember and celebrate the life and work of this great man, Martin Luther!