Well, for one thing a simpler way of computing the difference would be to use something like System. CurrentTimeMillis() or System.nanoTime() - that way you don't need to do anything other than just a simple subtraction to get the number of milliseconds or the number of nanoseconds between the start and the end.
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.