I would definitely go for the first method.
Here is the "usual" pattern. This allows you to put property-specific code inside the OnX method, and allows derived classes to do the same. No need for a big switch statement, unless of course you're the external listener, but that is par for the course for INotifyPropertyChanged.
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.