The four cardinal directions are referred to as cardinal because they are the four main origin directions. If you look up the word cardinal in the dictionary one of the definitions is as follows 1. Of prime importance; chief; principal: of cardinal significance.
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.