Maybe I've missed it in your code but I could not spot any Intent in it. You have to call an Intent with the ACTION_VIEW flag for whatever file you want to be shown.
Below code show you how to read the file content from the SDcard. Simple insert one text file in Sdcard and implement below code in your program.
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.