How to avoid that a class gets unloaded during lifecycle?

If you want to store global objects that can be accessed by ANY client, you should look into using Application State. For example, application state is often used to implement a global counter that tracks how many times an operation has been performed by ALL the application's clients.

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.