If there was anything that you would think would be immutable, it would be the past. Short of inventing a time machine, it should be impossible to change any event that has already occurred. However, this assumption is actually quite incorrect. While the events of objective history themselves cannot be changed, our understanding of them can. Indeed, revising history is easy when you control the levers of education and popular culture. Then, it’s just a matter of telling the history that you want to be told while ignoring the history that actually happened. A case in point would be the...