(Not) Celebrating History

Britain is apparently compiling a list of terrorist events throughout history (acts of violence against people, property, and electronic systems if intended to advance a political, religious or ideological cause or to influence a government, except for those involving Ireland), with the intention of making their celebration a crime. This made me wonder for a moment about Guy Fawkes Day, but then I realized that Britain isn't celebrating the terrorist event. It's a celebration of the arrest, torture and violent execution of the terrorist, which renders it altogether civilized.