There are two leagues in Major League Baseball: the American League and the National League. Each league conducts its own rounds of the playoffs, so there will be at least one team from each league still actively playing until the finals -- called the World Series -- are settled. The winner of the World Series is considered the world champion.
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.
There are 2 leagues. American League and National League.
There are too many to count. There are dozens and dozens of basketball leagues, a few American football leagues, soccer leagues, many baseball leagues, and so on. There is no kept count of professional athletes.
Overall, Satchel Paige played in many different baseball leagues. he played in the major and the minor leagues. he also played in the negro leagues and his number in the negro leagues was #25 ~thx! (for lookin at this info!)
To many to count
The big 2 in minor leagues is the AA and the AAA, but there are tons of leagues in minor league baseball. But first you might have to go play college baseball to appl for the minors i believe. keep researching an you'll find out sooneror later!
In the major leagues, 90 feet.
The final games will be played on September 28 so there are about 7-8 games left in the season.
The ten by seven rule was utilized mostly in little leagues and pee wee baseball.
According to Baseball Reference, through the games played on April 28, 2008 there have been 383,628 games played in the major leagues.
Baseball is extremely popular in the Netherlands. In addition to having many leagues of their own, the country has produced many MLB players.