Run a t-test. Divide the regression coefficient by the error in the estimate. If the ration > 2 then your statistic passes.
Look a the correlation between your stats. If you have stats that are highly correlated, Choose 1 and dispose of the rest.
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.