What English holiday did the people burn a straw to remember a fortunate discovery of a 1605 plot to kill a king?

In the United Kingdom, Guy Fawkes day calls for people to burn a straw to remember November 5, 1605. It commemorates the day when a treasonous conspiracy plot was uncovered that was to assassinate James I. Plans were put in place to blow up the House of Lords in Parliament. Fawkes was found guarding a massive amount of explosives.