Your installation files could be damaged while copying over network or saving to HDD. Try to create installation version ISO image, copy it to MacBook and check MD5 on both sides. It they match, mount ISO and go ahead with installation.
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.