Butter: Protestantism's Secret Ingredient?

A stick of butter and butter knife Riou / Getty Images

The Protestant Reformation remains one of the most significant cultural events in the Western world. Martin Luther's 95 Theses addressed numerous concerns with the Catholic church, including corruption and the practice of granting dispensations -- allowing people to, essentially, pay their way out of sin. So what was it about butter that spurred Martin Luther into action? The story might surprise you.