
Fawkes had been trying to assassinate the King so as to restore a Catholic monarch to the throne. On 5 November 1605 Londoners were encouraged to celebrate the King's escape from assassination by lighting bonfires, "always provided that 'this testimony of joy be careful done without any danger or disorder'". An Act of Parliament designated each 5 November as a day of thanksgiving for "the joyful day of deliverance", and remained in force until 1859. Although he was only one of 13 conspirators, Fawkes is today the individual most associated with the failed Plot.
Have fun and be safe!