FRAN: After all, what’s more important than your wedding day?
LORELAI: Well, it ain’t Guy Fawkes Day.
Guy Fawke’s Day, or Bonfire Night, is an annual commemoration on November 5, observed primarily in Britain. It marks the events of November 5 1605, when Guy Fawkes was arrested guarding explosives beneath the House of Lords that were intended to blow up Parliament.
Beginning as a celebration that the plot to kill King James I had failed, it became an annual event that could at times be violent, and until the mid 19th century had strong anti-Catholic overtones. Today Guy Fawke’s Day is much more fun and peaceful, with public bonfires and fireworks displays. Guy Fawke’s Day was celebrated in colonial America until the American Revolution.
In A Year in the Life, Lorelai and Luke get married on November 5 – Guy Fawke’s Day, as an apparent callback to this scene.
The Annotated Gilmore Girls 