I once saw the world in negative colors for 20-30sec. Why did this happen and How if possible?

Possibility you can. That's how I got my pink eye, except it was from touching a wall. Nothing much you can do now except pray.

Seriously, pray. You do not want those at all.

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.