Most of the important things in the Diet happened between 16-18 April. On 16 April, Martin Luther got to the city of Worms. He was told to come to the Diet at 4 p.m. on the 17th, and given a lawyer. After a day of arguing about his works, he was told that he was acting like a heretic. On the 18th of April, he went home. But Frederick III, Elector of Saxony thought that someone might kill him, so he faked a highway ambush and used this as a reason to hide Luther in one of his castles.