This is a little off. Considering that all mankind is based on a never ending path of evens, taking out a small one would even be devastating to our existence right now. Have you ever heard of the Butterfly Effect? Well, pretty much, if you change or alter one thing, you change everything.
So, what I am trying to say is, I would change nothing. I would not get rid of any even, person or anything else. It would change the very world we live in, I might not even be born if I changed anything significant. Or even something small. The people we are today are created by the events before us and the events that happen in our lifetime.
FullMetal