November 5 1605
This was timed for the opening of a new session of Parliament.
King James I survives.
On 31 January 1606, Fawkes and three other conspirators were hanged and quartered.
His effigy is traditionally burned on a bonfire, commonly accompanied by fireworks.
Americans, always ripe for a joke and a little mayhem and sedition, will appreciate a remark by James Sharpe, professor of history at the University of York, who has described how Guy Fawkes came to be toasted as "the last man to enter Parliament with honest intentions."