More Notable Events on July 27: 1996 Bomb explodes at Atlanta Olympic Park, 1 killed, 110 injured 1986 Greg Lemond is 1st American to win Tour de France 1949 1st jet-propelled airline, De Havilland Comet, flies 1947 Yogi Berri starts record 148 game errorless streak 1940 Billboard magazine starts publishing bestseller charts