I am assuming you are using a Mac as your computer. If you are not, I apologize as this method only works for Macs. As far as I can tell there is no "easy" way to do this.
What I did was I created a cloned copy of my hard drive on an external drive. The link below tells you how to do this. I followed it and it was pretty easy.
Once you have cloned your hard drive to the external drive when you reformat your computer you will then have to copy over your cloned drive back over to your computer. I have a blog post on my blog detailing how this is done. Head on over to that link.
I hope this helps. Again, I apologize if you don't have a Mac, as I only know how to do this for a Mac.
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.