Lymphocyte proliferation works when a naive T-cell encounters an antigen and becomes activated which then divides or proliferates into daughter cells. Some of the daughter cells will become effector cells which will perform certain functions and other daughter cells will become memory cells. Wikipedia has some information on it.
Alternatively, you can Google Lymphocyte Proliferation. More.
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.