I like it. It would be nice to know why the other answers are wrong, if you get a question wrong. Maybe something like a short explanation under the wrong answers in a small font? I got the Hundred Years' War wrong, saying 1320. I had the right thought that it was England-France (judging from Wikipedia), but apparently there was a different conflict in 1320, and it would be nice to know which one, so that I can learn from the mistake.