User blog comment:Raghava Shah/Assassin's Creed: Unity/@comment-3314175-20140410210326

It could be French Revolution. On the other hand guillotines have been used since then. Most notably by the invading Third Reich executing French Resistance members. I'm not suggesting the game is set during WWII Occupied France., all I'm saying is that guillotines weren't just used during one time period.