On the 500th anniversary of the Reformation comes this compelling, illuminating, and expansive religious history that examines the complicated and unintended legacies of Martin Luther and the epochal movement that continues to shape the world today.

For five centuries, Martin Luther has been lionized as an outspoken and fearless icon of change who ended the Middle Ages and heralded the beginning of the modern world. In Rebel in the Ranks, Brad Gregory, renowned professor of European history at Notre Dame, recasts this long-accepted portrait. Luther did not intend to start a...