You appear to be intelligent, at least in your own mind. Why not pose your questions to a wall since you already have the answers? A troll methinks.
Jet engine, electronic computer, principles of TV, antibiotics , DNA profiling, off the top of my head, many were made before the US was discovered.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.