As the other answer said they were working down a list and found someone they decided fit before they got to you. I always want to get a call even if I didn't get the job otherwise I am wondering if they have found someone else or are still interviewing and wondering how much longer wait until I know. So I think it is courtesy to get the call but I understand you are disappointed.
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.