Don't create a new InfoWindow for every marker. Only create one InfoWindow and then when you change it, do the following.
This will close all infoWindows on map click (without the need to have a reference to the infoWindow object).
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.