That is November 5th, 1605 to be precise.
In honor of Guy Fawkes night, and The Gunpowder Treason, I thought we would have a bit of V for Vendetta. (Use this link when YouTube trips over the privacy extensions in your browser.)
The first stanza, most people know…
The fifth of November,
The Gunpowder treason and plot;
I know of no reason
Why the Gunpowder treason
Should ever be forgot!