2015 — Lydia Ko, 17, becomes the youngest golfer, male or female, to be ranked No. 1. She shares second place at the LPGA Tour’s season opener, where she finishes a shot behind Na Yeon Choi.

1941 — Joe Louis knocks out Red Burman in the fifth round at Madison Square Garden to retain the world heavyweight title. 1950 — High school pitcher Paul Pettit signs with the Pirates for a ...