Cross-platform, open-source development framework that needs 3d graphics?

You have got a lot of options my friend, here are just a few which allow you to use a high level language to develop.

I think the closest thing to what you're after is Java. It has decent support for OpenGL(JOGL) and a good standard library that works on most systems.

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.