Changes

*[[Hartford Dark Blues]] folded after the 1877 season.

*[[Hartford Dark Blues]] folded after the 1877 season.

*[[St. Louis Brown Stockings]], folded after the 1877 season. This team is unrelated to the later [[St. Louis Cardinals]] or the St. Louis Browns (now the [[Baltimore Orioles]]).

*[[St. Louis Brown Stockings]], folded after the 1877 season. This team is unrelated to the later [[St. Louis Cardinals]] or the St. Louis Browns (now the [[Baltimore Orioles]]).

*[[Cincinatti Red Stockings]]. Unrelated to the previous Cincinatti Red Stockings (who had moved to Boston and also joined the National League at its founding) or the later [[Cincinatti Reds]], this team was expelled from the National League for selling [[beer]] at games, which at the time was against league rules.

*[[Cincinnati Red Stockings]]. Unrelated to the previous Cincinatti Red Stockings (who had moved to Boston and also joined the National League at its founding) or the later [[Cincinnati Reds]], this team was expelled from the National League for selling [[beer]] at games, which at the time was against league rules.

==Current teams==

==Current teams==