Niels Bohr was involved with many aspects of the development of Quantum Mechanics but he is best known for his theory of the Hydrogen atom. In this theory he applied Planck's concept of quantization to the dynamics of the electron in the Hydrogen atom. He concluded that the electron could only have certain energies and light emitted from Hydrogen only occured when the electron dropped from a high energy level to a lower energy level.
This theory fully explained the unusual light spectrum emitted by Hydrogen, which had puzzeled scientists for years.
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.