For millions of people around the world, the Summer and Winter Games are a joy and a treasure, but how did they develop into a global colossus? How have they been buffeted by--and, in turn, affected by--world events? Why do we care about them so much? From the reinvention of the Games in Athens in 1896 to Rio in 2016, best-selling sportswriter David Goldblatt brilliantly traces their history through national triumphs and tragedies, individual...