64bit Windows 7 is more powerful as it can utilize up to 128GB RAM if the motherboard can use this much consumer boards cannot at the moment. 32bit x86 Windows is limited to a maximum of 3.25-3.5GB RAM no matter how much you have physically installed. So if you are running video editing software or CAD applications a 64bit machine will be miles faster.
Even in general computing tasks a 64bit system is the more powerful. If you intend to upgrade from a 32bit to 64bit Windows than you need to make sure that there are 64bit drivers available for all the hardware. YOU CANNOT USE THE SAME 32BIT DRIVERS ON A 64BIT SYSTEM.
Also some software you can run on a 32bit machine may not run on a 64bit system.
Get x86 = 32bit if you have have 4gig or less of RAM, since windows will only recognized that maximum limit. However x64 = 64bit if you have more than 4gig of RAM or more so the window can fully utilized all the RAM Otherwise both version are essentially the same. Just depends on your need and how future-proof you want your computer to be.
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.