Just like any sport there is A LOT of rules and revisions that have been made to the game.
How many switch hitters are in major league baseball? How many switch hitters are in major league baseball?
It matters what league you are in.
A major league baseball has one continuous seam.
Depends what you mean by "major league" baseball. The first national baseball organization that attempted to set rules, create team schedules, and declare a yearly champion was the National Association of Baseball Players; which was founded in 1871. To this day, neither Major League Baseball nor the Hall of Fame consider this organization to be a "major" league; although many historians do. The National League, an organization still in existence, was founded in 1876.
As of 2010 there are 30 Major League Baseball teams.
There are 30 Major League baseball teams, 16 in the National League, and 14 in the American League.
how many players in major league baseball are not united states citizens, by team.
In 2008, Major League Baseball (MLB) consisted of 30 teams.
None, there has never been a female player in Major League baseball.