Did You Know? The Diet of Worms ended May 25, 1521 when Emperor Charles V issued the Edict of Worms, condeming Martin Luther from a civil law perspective. (A “diet,” in this usage, was a governmental deliberative assembly, such as the Imperial Diet of the Holy Roman Empire, which assembled its imperial estates for formal deliberation. Also, “Worms”–pronounced “Verms”–is a place in Germany. So there.) LEARN MORE.