Don't know, if this may cause the error: csv is an ascii-text file. You should use text/csv or at least text/plain. At all every text/*-mime-type is more useful, then application/octet-stream, because this defines binary data, what csv-files are obviously not.
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.