Do all experiments need a control group?

Yes, because if there is no control group, the results of the experiment are meaningless. If I had two plants, one I used miracle-grow on and the other I never watered, I wouldn't know if either of my variations (not watering and using miracle-grow) were meaningful without having another plant which lived a normal life (with adequate water) to compare it to.

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.