The problem is because you're setting the event listener for the marker click within a loop. So all the markers end up only getting the content for the last of your markers. Try this instead.
Create a new global function.
When setting the marker object (var marker = new ...) change this line: "title: club0," to "title: clubi,". Yes, just change the 0 to i.
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.