It invokes all registered event listeners which are registered on the ThresholdReached event.
Handler refers to your ThresholdReached event. So, if anyone is subscribing to ThresholdReached events, their registered handler will be called with arguments thisand e.
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.