Facebook has its own Caching that can sometimes cause changes to your Meta Tags to never show up properly, even after adding or changing them.
I haven't done any facebook development, but looking at this documentation, it says.
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.