As far I can understand your question , you require an application should post too the wall even if you are offline.In short you require a facebook application with offline capabilities.
First off, you need to be sure to request "offline_access" permission from the user.
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.