I am not familiar with the event aggregator pattern, but a solution to your problem may be found in the Model View Presenter pattern. There is a framework to bring Model View Presenter to Web Forms. In the documentation there is an example of 'cross-presenter messaging' which is solved through a message bus and a publish and subscribe model.
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.