Click on the 'Olympic Games Host Cities' link on this page to see a list of host cities of the Olympics along with reading a short history of the ancient and modern Olympics There is also a VERY good website: harveyabramsbooks.com/host cities html which you can go to, to find out which countries, cities AND what year they hosted the olympics!
Currently, only continents host olympic games, but if you want specific countries, then all of Russia hasn't hosted yet, and sooooooooooo many countries haven't hosted.
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.