Sunday, October 31, is Reformation Day. It marks 493 years since Martin Luther nailed his 95 theses to the famous church door in Wittenberg, Germany. The Augustinian monk set in motion a sequence of events that reverberated through Western Christendom and continues to mark and separate us today. Since returning to the Catholic Church in late April 2007, I find Reformation Day has taken on a different meaning than when I stood on the other side of the Tiber. Nevertheless, even as a Protestant, my enthusiasm for October 31 never rose higher than modest appreciation for what I thought were Luther’s, and later Calvin’s, significant contributions in helping Western Christians to retrieve what had been lost. I say “modest appreciation,” since it always seemed to me rather unseemly to get too excited about schism and mutual charges of apostasy and heresy. It would be like celebrating the tenth anniversary of your divorce. You may think that the divorce was a good idea, but not because you think divorce itself is the proper end of a marriage.