That's the formal codification of football - Association Football, Rugby Football (both League and Union). The games themselves have been around for hundreds of

That's the formal codification of football - Association Football, Rugby Football (both League and Union). The games themselves have been around for hundreds of years. Really, though, it's a cultural thing. http://en.wikipedia.org/wiki/History_of_rugby_league http://en.wikipedia.org/wiki/History_of_rugby_league is pretty typical.