There might be a better way but off the top of my head I would try this.
As I noticed the max contentOffset can be calculated from the start it's just a difference between the scrollview contentSize and scrollview frame size. I calculated it on y like this. MaxOffsetY = scrollView.contentSize.
Height - scrollview.frame.size.height.
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.