Through the 2009 World Series:
1) 1997 Florida Marlins
2) 2002 Anaheim Angels
3) 2003 Florida Marlins
4) 2004 Boston Red Sox
For the American League the pennant winners were the Chicago Whitesox. (This was the first year the AL was elevated to Major League level. For the National League the pennant winners were the Pittsburg Pirates. No World Series was held this year.
The ALDS is the American League Division Series. The ALDS and its National League equivalent, the NLDS, are the first rounds of Major League Baseball's postseason. There are 2 ALDS series. The winners meet in the ALCS (the American League Championship Series). Meanwhile the same happens in the NL. The ALCS and ALDS winners meet in the World Series.
Red Sox and Yankees are in the same league (American) and so they can not meet in the World Series since the World Series is played between the winners of the American League and National League of the Major Baseball League
To win the National League or the American League Championship in major league baseball. The two pennant winners face off in the World Series
New York Yankees
The American League Championship Series matches the New York Yankees (the 2009 World Series titlists) against the Texas Rangers. The National League Championship Series features the Philadelphia Phillies versus the San Francisco Giants. The winners in each league will advance to the 106th World Series, which will begin Wednesday, October 27, 2010 at the home of the National League champion.
There was no World Series played in 1904 because the National League pennant winners, the New York Giants, refused to play the American League champion.
The World Series in baseball is the best team in the American League, playing the best team in the National League for the Major League Championship.
League Championships then the World Series
its the championship between the national league and American league champions
The "World Series" has been played by Major League Baseball since 1903. The World Series is the last round of playoffs, played between the American League champions, and the National League champions.
the philadelphia phillies won the 2008 world series