Gunpowder Plot
It was a plan to blow up Parliament on November 5, 1605. Robert Catesby and his co-conspirators wanted to take down King James l and his legislators. But the plan, later called the “gunpowder plot,” was foiled after an anonymous tip led to a search of Westminster. Guy Fawkes was caught with barrels of gunpowder and arrested, tried and executed for treason.