Frequently Asked Questions about the Diet of Worms Q: What was the Diet of Worms? The Diet of Worms was a historic assembly held in the city of Worms, Germany, in 1521. It was an imperial diet (assembly) of the Holy Roman Empire where Martin Luther, a prominent figure in the Protestant Reformation, was summoned to face questioning and defend his controversial teachings. Learn more about the Diet of Worms Q: Why was the Diet of Worms significant? The Diet of Worms was significant because it marked a critical turning point in the Protestant Reformation. Martin Luther’s trial and subsequent…