In the major leagues, there are 29 baseball teams in the US; but there is one major league team, the Toronto Blue Jays, in Canada.
There are 2 leagues. American League and National League.
32 football teams NFL
In all, there are 30 Major League teams. The New York Yankees are the best by far with 26 World Series wins.
The Negro leagues were US professional baseball leagues. The term is usually used to include 7 leagues, also called "Negro Major Leagues" which began in 1920.
Two teams have switched leagues. The Milwaukee Brewers changed from the AL to the NL in 1998 and the Houston Astros moved to the AL in 2013.
Well, in the Major Leagues in 1981 there were 26 teams, 12 in the National League and 14 in the American League. Each team had 25 players. So that means there were 650 players in the Major Leagues at any one time.
Five...San Diego Padres, Los Angeles Angels of Anaheim, Los Angeles Dodgers, San Francisco Giants and Oakland Athletics in the Major Leagues...Many more in the minor leagues and colleges and high school and a lot more in youth leagues.
If you are talking professional baseball, AAA is one step below the major leagues. AA is 2 steps and so forth. Many teams have multiple single A teams (a high end and low end)
To many to count
In 2008, Major League Baseball (MLB) consisted of 30 teams.