Leeuwenhoek actually did invent the first microscope. He also discovered bacteria, free living and parasitic microscopic protists, blood cells, sperm cells, egg cells, fertilized cells, blood cells, microscopic nematodes, rotifiers, infusoria, spermatozoa, silver and copper microscopes, and what he called, " little animacules.
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.