Early seventies I believe. So, I guess just a thing we wizards haven't heard about yet.
Oh, it's great fun. It's like a game of dodgeball, where you also try to throw a ball through a hoop that has a keeper, and then there's also a game of hide-and-seek happening as well where one person from each team attempts to find someone hiding in the vicinity wearing a yellow shirt that proclaims "I'm the snitch!" And all of this is done while they're holding a broomstick between their legs.