"Remember, remember, the Fifth of November, Gunpowder Treason and Plot".Guy Fawkes Night, also known as Guy Fawkes Day, Bonfire Night and Fireworks Night, is an annual commemoration observed on 5 November, primarily in Great Britain, involving bonfires and fireworks displays. Its history begins with the events of 5 November 1605 O.S., when Guy Fawkes, a member of the Gunpowder Plot, was arrested while guarding explosives the plotters had placed beneath the House of Lords. The Catholic plotters had intended to assassinate Protestant king James I and his parliament. Celebrating that the king had survived, people lit bonfires around London. Months later, the Observance of 5th November Act mandated an annual public day of thanksgiving for the plot's failure.