Timeline
- The 1884 Washington Statesmen were replaced during the season by the Richmond Virginians.
- For the 1891 season, the Philadelphia Athletics were replaced by the Philadelphia Quakers of the Player's League.
- The 1891 Cincinnati Kelly's Killers folded during the season and were replaced by the Milwaukee Brewers.
- 1882-AA forms with six teams
- 1883-AA expands to eight teams
- 1884-AA expands to twelve teams in response to Union Association threat
- 1885-AA returns to eight teams
- 1887-Allegheny ("Pittsburgh Alleghenys") leave AA to join NL
- 1889-Cleveland Spiders leave AA to join NL
- 1890-Cincinnati Red Stockings and Brooklyn Bridegrooms leave AA to join NL
- 1892-Baltimore Orioles, Louisville Colonels, St.Louis Browns, and Washington Senators join National League after the folding of the AA
Read more about this topic: American Association (19th Century)