The rabbit hole takes us to 1914, a great American sports year. Wrigley Field opened. Babe Ruth pitched in his first game. A baseball prospect who could switch-hit AND switch-throw put the sport aside for a week to play in the U.S. Open golf tournament -- Walter Hagen won that Open to launch one of the most remarkable American sports careers. Heavyweight champion of the world Jack Johnson continued to batter the array of Great White Hopes promoters put in front of him.