You do it the same way as any other dual boot. Use 2 seperate hdd, or partition one hdd into 2 partitions. Install the other os to the free hdd/partition.
As for the bootloader, id suggest grub. http://www.gnu.org/software/grub/grub-do... As for setting it up and everything, should probably read http://www.hackintosh.com But know, you need specific hardware to do it, it cant just be done any any computer.
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.