Simple, universal, playable, the ball is among the most recognizable artifacts of human culture. It’s also the driver of an estimated five-hundred-billion- dollar- a-year sports industry. Harvard anthropologist John Fox set off on a global adventure and dug into the ancient past to uncover the origins and evolution of our favorite ball games. His book is called The Ball: Discovering the Object of the Game. We discussed the book with John last year when the book was released.