Guy Fawkes is amongst the most celebrated figures in English history and Bonfire Night is a remarkably long lived and very English tradition. But why every November do we still mark a planned act of treason and terrorism that was defeated 400 years ago? James Sharpe examines the fateful night of 5 November, 1605 and the tangled web of religion and politics which gave rise to the plot. He uncovers how celebration of the event, and of Guy Fawkes, the one gunpowder plotter everyone remembers, has changed over the centuries. Today, although most of the religious connotations have long been ignored, the bonfires remain. The festival created in 1605 by the state and church to commemorate a failed act of Catholic terrorism, now provides an annual raison d'etre for the firework industry and a cause of concern for Britain's cat owners!