Question

definition of worms? not the animal. the history one.

Answer 1

I expect that you refer to the famous "diet of Worms" : this was a famous imperial deliberation held in 1521 in the old cathedral city of Worms in Germany. Martin Luther appeared and refused to change his objections to the activities of the Catholic church which he had made in his "95 theses".

The official site of Stadt Worms is at www.worms.de and some of the information is available in English.