A question for my readers: Who among you knows what vitally important historic event took place ( or, in terms of the AU this is occurring in, will take place) on April 20th, 1889?

It's going to take place in Branau-am-Inn, Austria. Hint.

In a family that was known as Schicklgruber. Hint.

Who among you knows Magneto's history? Hint.

Because that's where this fic is heading, once Part 2 (which is just barely begun) is over....