1997 Event Chicago Cubs turn baseballs 68th triple play (vs San Francisco Giants) 1974 Event Cowhide, rather than just horsehide, can be used to make baseballs 1969 Event Bobby Bonds is baseballs 4th 30-HR, 30-steal player 1963 Event Major league baseballs 100,000th game 1920 Event A's Vice President Thomas Shibe denies charges that baseballs are livelier 1920 Event Joint Rules Com bans foreign substances and alterations to baseballs
