Board Thread:Questions and Answers/@comment-4923787-20131006233702/@comment-32656-20131008112529

Google and Wikipedia for pictures.

As for the second part, it really depends. In Ghandi's case, with your context, he more than likely would, but his impact is very debatable.

If the same concepts still happen in Germany, then something will happen. Odds are very good that it is not someone as "out" there as Hitler, though.

With the Butterfly Effect, Can, it's up to the author. You can either go with no one existing, like Yan does, some existing, or all existing. Up to you. Depends very much on your story, where disasters happen, your personal beliefs, etc.