During the 18th century, it was noticed that milkmaids rarely became infected by smallpox. The majority of milkmaids did, however, get a disease called "cow pox" once in their life (and never again) Edward Jenner (17 May 1749 - 26 January 1823, Berkely, Gloucestershire, England) experimented and found that by infecting a person with cow pox, they could be immunised against smallpox This immunisation is caused by the cow pox initiating the production of antibodies by the immune system, which are effective against both cow pox and the genetically related smallpox.
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.