DidSelectRowAtIndexPath for calling new Thread?

Any user interface tasks ABSOLUTELY MUST run on main thread. This is not an option, background UI manipulation can and will raise exception. You have to load your data in background before you push new viewController on main thread.

You cant pass int. Instead int -> nsnumber or nsstring that can be retained.

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.