Four hundred fifty eight years ago, on March 21, 1556, a crowd of curious spectators packed University Church in Oxford, England. They were there to witness the public recantation of one of the most well-known English Reformers, a man named Thomas Cranmer. Cranmer had been arrested by Roman Catholic authorities nearly three years earlier. At first, his resolve was strong. But after many months in prison, under daily pressure from his captors and the imminent threat of being burned at the stake, the Reformer’s faith faltered. His enemies eventually coerced him to sign several documents renouncing his Protestant faith. In...