<P> The Diet of Worms 1521 (German: Reichstag zu Worms, (ˈʁaɪçstaːk tsuː ˈvɔɐms)) was an imperial diet (assembly) of the Holy Roman Empire held at the Heylshof Garden in Worms, then an Imperial Free City of the Empire . An imperial diet was a formal deliberative assembly of the whole Empire . This one is most memorable for the Edict of Worms (Wormser Edikt), which addressed Martin Luther and the effects of the Protestant Reformation . It was conducted from 28 January to 26 May 1521, with the Emperor Charles V presiding . </P> <P> Other imperial diets took place at Worms in the years 829, 926, 1076, 1122, 1495, and 1545, but unless plainly qualified, the term "Diet of Worms" usually refers to the assembly of 1521 . </P>

When did the diet of worms take place