We look back 50 years to the night that Hank Aaron hit his 715th home run, breaking the long-standing career home run record of Babe Ruth. Sportswriter Randy Louis Cox was there that night, and writes about it in his book "715 at 50: The Night Henry Aaron Changed Baseball and the World Forever." Cox will be signing copies of his book tomorrow (Tuesday) afternoon, 1:00 to 6:00, at Baseballism Wisconsin, a sports memorabilia store in Franklin, WI, ahead of tomorrow evening's Milwaukee Brewers home game.