A body can rotate about its center of gravity due to external forces, but not due to its own gravity Use a free body diagram If no unbalanced forces exist, or a couple moment, then there will not be any forces to cause the body to rotate btw, the earth does not rotate because of its own gravity, the earth rotates because of the external forces given to the body of earth when the solar system formed Don't quote me on it but this is my understanding I'm currently taking Statics and Dynamics in Engineering (Physics).
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.