Typically, these days you'd create your own class derived from EventArgs and then just use EventHandler Non-nested).
I would declare them outside as they are ment to be used by other classes as well - the consumers of the event. I would keep the delegate in the same file as the class if the delegate is specific to this class.
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.