The first issue of Christian History magazine's series of four on the Reformation explores the roots and fruits of reform. On a quiet October Wednesday in 1517, a young Augustinian monk and theology professor, with one nail to the Wittenberg Castle door, struck a death blow to medieval Catholicism. That’s the story we think we know of Martin Luther, his 95 Theses, and the beginning of the Reformation. But is it the whole story?