Along the top bar on facebook click "Account" and then on the drop down menu click on "Privacy Settings". Near the bottom of the page that comes up in the middle under the title "Block Lists" click on "Edit your lists". On the page that comes up there will be a list of people applications that you have blocked on facebook.To unblock someone, just click the "unblock" link right next to their name.
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.