| Year | Month | Day | Event |
|---|---|---|---|
| 1871 | May | 04 | National Association Baseball League Opens Season |
| 1876 | Apr | 22 | National League Baseball First Played In Philadelphia |
| 1884 | May | 01 | Walker First African-American Pro Baseball Player |
| 1899 | Oct | 11 | Western League Is Renamed American League |
| 1900 | Jan | 29 | Philadelphia: American League Organized 8 Teams |
| 1914 | Apr | 23 | Baseball Was Played On Wrigley's Field |
| 1920 | May | 02 | Indianapolis: First Game Of Negro National League |
| 1936 | Jan | 29 | First Baseball Hall-of-Famers Announced |
| 1965 | Apr | 09 | Astrodome Hosts First Indoor Baseball Game |
| 1971 | Feb | 09 | Paige First Negro Leaguer Elected To Hall |
| 1972 | Sep | 30 | Clemente: 3000th And Final Career Hit |
| 1973 | Jan | 11 | American League Adopts Baseball DH Rule |
| 1982 | Apr | 21 | Rollie Fingers Had 300 Saves |
| 1989 | Aug | 24 | Rose Banned From Baseball For Gambling |
| 1994 | Aug | 12 | League Strike May Cancel 94 Series |
| 1994 | Sep | 14 | Strike Cancels Major League Baseball Season |