Timeline of Major League Baseball

Last updated

The following is a timeline of franchise evolution in Major League Baseball. The histories of franchises in the National Association of Base Ball Players (NABBP), National Association of Professional Base Ball Players (NA), Union Association (UA), and American Association (AA) before they joined the National League (NL) are also included. In 1900 the minor league Western League renamed itself the American League (AL). All of the 1899 Western League teams were a part of the transformation with the Saint Paul Apostles moving to Chicago and to play as the White Stockings. In 1901 the AL declared itself a Major League. For its inaugural major league season the AL dropped its teams in Indianapolis, Buffalo and Minneapolis and replaced them with franchises in Boston, Philadelphia, and Baltimore and the Kansas City Blues moved to Washington to play as the Senators.

Contents

In 2020, Major League Baseball designated the following seven Negro leagues from 1920–1948 as major leagues: [1] Negro National League I (NNL), Eastern Colored League (ECL), American Negro League (ANL), East–West League (EWL), Negro Southern League (NSL), Negro National League II (NNL), and Negro American League (NAL).

The timeline has not yet been fully updated to reflect that designation (in addition, the timeline does not include any non-National League/American League teams which existed at the Major League level from 1876 to 1915).

The History of organizational changes section includes all leagues and which have been designated as major league by MLB, listed chronologically by founding date:

MLB timeline

The first line is the formation of the National League in 1876, and the second is the transformation of the American League to a major league in 1901. The third line is the beginning of the expansion era in 1961. The fourth line marks the legal merger of the American and National Leagues into a single Major League Baseball.

World Series championships are shown with a "*", National League Pennants before the World Series are shown with a "^", and American League Pennants before the World Series "#". No World Series was played in 1904, so the pennant winners for each league are indicated. Due to the 1994-95 Major League Baseball strike, there were no pennant winners or World Series in 1994, so this year is left blank.

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Timeline of Major League Baseball

History of organizational changes

Source: The Baseball Encyclopedia (10 ed.). Macmillan General Reference. 1996. ISBN   978-0028608150.
Note: Team names are given here according to the convention used by The Baseball Encyclopedia , which regularized them into the familiar form of modern team names. However, most teams in the early period had no name, aside from that of the club (as in "Hartford Base Ball Club" or "Athletic Base Ball Club of Philadelphia"), and nicknames like "Beaneaters," "Perfectos" and the many allusions to uniform colors were inventions by the florid sportswriters of the day. [2]

Pre-modern Era (1876–1900)

1876: Founding of the National League (NL)

The NL was established with eight teams.

Only season in NL §
1876 NL teams
Boston Red Caps Louisville Grays
Chicago White Stockings New York Mutuals§
Cincinnati Reds Philadelphia Athletics§
Hartford Dark Blues St. Louis Brown Stockings

1877

Team folded after this season ^
1877 NL teams
Boston Red Caps Cincinnati Reds
Brooklyn Hartfords^ Louisville Grays^
Chicago White Stockings St. Louis Brown Stockings^

1878

First season in NL *Only season in NL §
1878 NL teams
Boston Red Caps Indianapolis Blues§
Chicago White Stockings Milwaukee Grays§
Cincinnati Reds Providence Grays*

1879

First season in NL *Only season in NL §Team disbanded after this season ^
1879 NL teams
Boston Red Caps Cleveland Blues*
Buffalo Bisons* Providence Grays
Chicago White Stockings Syracuse Stars§
Cincinnati Reds^ Troy Trojans*

1880

First season in NL *Only season in NL §
1880 NL teams
Boston Red Caps Cleveland Blues
Buffalo Bisons Providence Grays
Chicago White Stockings Troy Trojans
Cincinnati Stars§ Worcester Worcesters*

1881

First season in NL *
1881 NL teams
Boston Red Caps Detroit Wolverines*
Buffalo Bisons Providence Grays
Chicago White Stockings Troy Trojans
Cleveland Blues Worcester Worcesters

1882: Establishment of the American Association (AA)

The AA was established with six teams.

Team folded after this season ^
1882 Major League teams
NL AA
Boston Red Caps Baltimore Orioles
Buffalo Bisons Cincinnati Red Stockings
Chicago White Stockings Louisville Eclipse
Cleveland Blues Philadelphia Athletics
Detroit Wolverines Pittsburgh Alleghenys
Providence Grays St. Louis Brown Stockings
Troy Trojans^ 
Worcester Worcesters^

1883

First MLB season *
1883 Major League teams
NL AA
Boston Beaneaters Baltimore Orioles
Buffalo Bisons Cincinnati Red Stockings
Chicago White Stockings Columbus Buckeyes*
Cleveland Blues Louisville Eclipse
Detroit Wolverines New York Metropolitans*
New York Gothams* Philadelphia Athletics
Philadelphia Quakers* Pittsburgh Alleghenys
Providence Grays St. Louis Browns

1884: The Union Association (UA) as a third league

First season in AA *Only season in AA/Folds mid-season §Last season in AA or NL ^
1884 Major League teams
NL AA Union Association
Boston Beaneaters Baltimore Orioles Altoona Mountain Citys§
Buffalo Bisons Brooklyn Atlantics* Baltimore Monumentals
Chicago White Stockings Cincinnati Red Stockings Boston Reds
Cleveland Blues^ Columbus Buckeyes^ Chicago Browns/Pittsburgh Stogies§
Detroit Wolverines Indianapolis Hoosiers§ Cincinnati Outlaw Reds
New York Gothams Louisville Eclipse Kansas City Cowboys
Philadelphia Quakers New York Metropolitans Milwaukee Brewers
Providence Grays Philadelphia Athletics Philadelphia Keystones§
  Pittsburgh Alleghenys St. Louis Maroons
Richmond Virginians§ St. Paul Saints
St. Louis Browns Washington Nationals
Toledo Blue Stockings§ Wilmington Quicksteps§
Washington Nationals§ 

1885: Back to two leagues

Team moved from the former UA **Last season in NL ^
1885 Major League teams
NL AA
Boston Beaneaters Baltimore Orioles
Buffalo Bisons^ Brooklyn Grays
Chicago White Stockings Cincinnati Red Stockings
Detroit Wolverines Louisville Colonels
New York Giants New York Metropolitans
Philadelphia Quakers Philadelphia Athletics
Providence Grays^ Pittsburgh Alleghenys
St. Louis Maroons** St. Louis Browns

1886

First season in NL *Only season in NL §
1886 Major League teams
NL AA
Boston Beaneaters Baltimore Orioles
Chicago White Stockings Brooklyn Grays
Detroit Wolverines Cincinnati Red Stockings
Kansas City Cowboys§ Louisville Colonels
New York Giants New York Metropolitans
Philadelphia Quakers Philadelphia Athletics
St. Louis Maroons Pittsburgh Alleghenys
Washington Nationals* St. Louis Browns

1887

First season in AA *Team moved from AA **Last season in AA ^
1887 Major League teams
NL AA
Boston Beaneaters Baltimore Orioles
Chicago White Stockings Brooklyn Grays
Detroit Wolverines Cincinnati Red Stockings
Indianapolis Hoosiers Cleveland Blues*
New York Giants Louisville Colonels
Philadelphia Quakers New York Metropolitans^
Pittsburgh Alleghenys** Philadelphia Athletics
Washington Nationals St. Louis Browns

1888

First season in AA *Last season in NL ^
1888 Major League teams
NL AA
Boston Beaneaters Baltimore Orioles
Chicago White Stockings Brooklyn Bridegrooms
Detroit Wolverines^ Cincinnati Red Stockings
Indianapolis Hoosiers Cleveland Blues
New York Giants Kansas City Cowboys*
Philadelphia Quakers Louisville Colonels
Pittsburgh Alleghenys Philadelphia Athletics
Washington Nationals St. Louis Browns

1889

First season in AA *Team moved from AA **Last season in AA or NL ^
1889 Major League teams
NL AA
Boston Beaneaters Baltimore Orioles
Chicago White Stockings Brooklyn Bridegrooms
Cleveland Spiders** Cincinnati Red Stockings
Indianapolis Hoosiers^ Columbus Solons*
New York Giants Kansas City Cowboys^
Philadelphia Quakers Louisville Colonels
Pittsburgh Alleghenys Philadelphia Athletics
Washington Nationals^ St. Louis Browns

1890: The Players' League (PL) as a third league

Team moved from AA **Only season in AA §
1890 Major League teams
NL AA PL
Boston Beaneaters Baltimore Orioles Boston Reds
Brooklyn Bridegrooms** Brooklyn Gladiators§ Brooklyn Ward's Wonders
Chicago Colts Columbus Solons Buffalo Bisons
Cincinnati Reds** Louisville Colonels Chicago Pirates
Cleveland Spiders Philadelphia Athletics Cleveland Infants
New York Giants Rochester Broncos§ New York Giants (PL)
Philadelphia Phillies St. Louis Browns Philadelphia Athletics (PL)
Pittsburgh Alleghenys Syracuse Stars§ Pittsburgh Burghers
  Toledo Maumees§ 

1891: Last AA season

First MLB season *Only season in MLB §Last MLB season ^
1891 Major League teams
NL AA
Boston Beaneaters Baltimore Orioles
Brooklyn Grooms Boston Reds^
Chicago Colts Cincinnati Kelly's Killers§
Cincinnati Reds Columbus Solons^
Cleveland Spiders Louisville Colonels
New York Giants Milwaukee Brewers§
Philadelphia Phillies Philadelphia Athletics^
Pittsburgh Pirates St. Louis Browns
  Washington Statesmen*

1892: NL monopoly

Teams move from the former AA **
1892 to 1895 NL teams
Baltimore Orioles** Louisville Colonels**
Boston Beaneaters New York Giants
Brooklyn Grooms Philadelphia Phillies
Chicago Colts Pittsburgh Pirates
Cincinnati Reds St. Louis Browns**
Cleveland Spiders Washington Senators**

1896

The Brooklyn Grooms became the Brooklyn Bridegrooms again.

1896 to 1897 NL teams
Baltimore Orioles Louisville Colonels
Boston Beaneaters New York Giants
Brooklyn Bridegrooms Philadelphia Phillies
Chicago Colts Pittsburgh Pirates
Cincinnati Reds St. Louis Browns
Cleveland Spiders Washington Senators

1898

The Chicago Colts became the Chicago Orphans.

1898 NL teams
Baltimore Orioles Louisville Colonels
Boston Beaneaters New York Giants
Brooklyn Bridegrooms Philadelphia Phillies
Chicago Orphans Pittsburgh Pirates
Cincinnati Reds St. Louis Browns
Cleveland Spiders Washington Senators

1899

Team folded after this season ^
1899 NL teams
Baltimore Orioles^ Louisville Colonels^
Boston Beaneaters New York Giants
Brooklyn Superbas Philadelphia Phillies
Chicago Orphans Pittsburgh Pirates
Cincinnati Reds St. Louis Perfectos
Cleveland Spiders^ Washington Senators^

1900: Classic Eight

1900 NL teams
Boston Beaneaters New York Giants
Brooklyn Superbas Philadelphia Phillies
Chicago Orphans Pittsburgh Pirates
Cincinnati Reds St. Louis Cardinals

Birth of the Modern Era (1901–1919)

1901: Founding of the American League (AL)

The AL was established with eight teams.

1901 Major League teams
AL NL
Baltimore Orioles Boston Beaneaters
Boston Americans Brooklyn Superbas
Chicago White Stockings Chicago Orphans
Cleveland Blues Cincinnati Reds
Detroit Tigers New York Giants
Milwaukee Brewers Philadelphia Phillies
Philadelphia Athletics Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1902

Team folded after this season ^
1902 Major League teams
AL NL
Baltimore Orioles^ Boston Beaneaters
Boston Americans Brooklyn Superbas
Chicago White Stockings Chicago Orphans
Cleveland Bronchos Cincinnati Reds
Detroit Tigers New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1903: National Agreement and Founding of Major League Baseball (MLB)

First AL season *
1903 Major League teams
AL NL
Boston Americans Boston Beaneaters
Chicago White Stockings Brooklyn Superbas
Cleveland Naps Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Highlanders* New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1904

The Chicago White Stockings became the Chicago White Sox.

1904 to 1906 Major League teams
AL NL
Boston Americans Boston Beaneaters
Chicago White Sox Brooklyn Superbas
Cleveland Naps Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Highlanders New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1907

The Boston Beaneaters became the Boston Doves.

1907 Major League teams
AL NL
Boston Americans Boston Doves
Chicago White Sox Brooklyn Superbas
Cleveland Naps Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Highlanders New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1908

The Boston Americans became the Boston Red Sox.

1908 to 1910 Major League teams
AL NL
Boston Red Sox Boston Doves
Chicago White Sox Brooklyn Superbas
Cleveland Naps Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Highlanders New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1911

1911 Major League teams
AL NL
Boston Red Sox Boston Rustlers
Chicago White Sox Brooklyn Trolley Dodgers
Cleveland Naps Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Highlanders New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1912

The Boston Rustlers became the Boston Braves.

1912 Major League teams
AL NL
Boston Red Sox Boston Braves
Chicago White Sox Brooklyn Trolley Dodgers
Cleveland Naps Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Highlanders New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1913

1913 Major League teams
AL NL
Boston Red Sox Boston Braves
Chicago White Sox Brooklyn Dodgers
Cleveland Naps Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Yankees New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1914

1914 Major League teams
AL NL FL
Boston Red Sox Boston Braves Baltimore Terrapins
Chicago White Sox Brooklyn Robins Brooklyn Tip-Tops
Cleveland Naps Chicago Cubs Buffalo Buffeds
Detroit Tigers Cincinnati Reds Chicago Federals
New York Yankees New York Giants Indianapolis Hoosiers
Philadelphia Athletics Philadelphia Phillies Kansas City Packers
St. Louis Browns Pittsburgh Pirates Pittsburgh Rebels
Washington Senators St. Louis Cardinals St. Louis Terriers

1915

1915 Major League teams
AL NL FL
Boston Red Sox Boston Braves Baltimore Terrapins
Chicago White Sox Brooklyn Robins Brooklyn Tip-Tops
Cleveland Indians Chicago Cubs Buffalo Blues
Detroit Tigers Cincinnati Reds Chicago Whales
New York Yankees New York Giants Kansas City Packers
Philadelphia Athletics Philadelphia Phillies Newark Peppers
St. Louis Browns Pittsburgh Pirates Pittsburgh Rebels
Washington Senators St. Louis Cardinals St. Louis Terriers

1916

The FL folded prior to the season.

1916 to 1919 Major League teams
AL NL
Boston Red Sox Boston Braves
Chicago White Sox Brooklyn Robins
Cleveland Indians Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Yankees New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

Establishment of major Negro leagues (1920–1946)

1920: Establishment of the Negro National League (NNL)

The NNL was established with eight teams, the first black baseball league to be designated a major league.

Team withdrew after this season ^^
1920 Major League teams & 1920 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Chicago American Giants
Chicago White Sox Brooklyn Robins Chicago Giants
Cleveland Indians Chicago Cubs Cuban Stars
Detroit Tigers Cincinnati Reds Dayton Marcos^^
New York Yankees New York Giants Detroit Stars
Philadelphia Athletics Philadelphia Phillies Indianapolis ABCs
St. Louis Browns Pittsburgh Pirates Kansas City Monarchs
Washington Senators St. Louis Cardinals St. Louis Giants

1921

Only season in NNL §Team folded after this season ^
1921 Major League teams & 1921 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Chicago American Giants
Chicago White Sox Brooklyn Robins Chicago Giants^
Cleveland Indians Chicago Cubs Cincinnati Cuban Stars
Detroit Tigers Cincinnati Reds Columbus Buckeyes§
New York Yankees New York Giants Detroit Stars
Philadelphia Athletics Philadelphia Phillies Indianapolis ABCs
St. Louis Browns Pittsburgh Pirates Kansas City Monarchs
Washington Senators St. Louis Cardinals St. Louis Giants

1922

First season in NL *Only season in NNL §
1922 Major League teams & 1922 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Chicago American Giants
Chicago White Sox Brooklyn Robins Cleveland Tate Stars*
Cleveland Indians Chicago Cubs Cuban Stars
Detroit Tigers Cincinnati Reds Detroit Stars
New York Yankees New York Giants Indianapolis ABCs
Philadelphia Athletics Philadelphia Phillies Kansas City Monarchs
St. Louis Browns Pittsburgh Pirates Pittsburgh Keystones§
Washington Senators St. Louis Cardinals St. Louis Stars

1923: Founding of the Eastern Colored League (ECL)

Only season in NNL §Only season in NNL, folded mid-season §§Associate member, joined mid-season, team folded after season ^
1923 Major League teams & 1923 major Negro league teams
AL NL NNL ECL
Boston Red Sox Boston Braves Chicago American Giants Atlantic City Bacharach Giants
Chicago White Sox Brooklyn Robins Cleveland Tate Stars ^ Baltimore Black Sox
Cleveland Indians Chicago Cubs Cuban Stars (West) Brooklyn Royal Giants
Detroit Tigers Cincinnati Reds Detroit Stars Cuban Stars (East)
New York Yankees New York Giants Indianapolis ABCs Hilldale Club
Philadelphia Athletics Philadelphia Phillies Kansas City Monarchs New York Lincoln Giants
St. Louis Browns Pittsburgh Pirates Milwaukee Bears§ 
Washington Senators St. Louis Cardinals St. Louis Stars
Toledo Tigers§§

1924

First season in NNL or ECL*Only season in NNL §
1924 Major League teams & 1924 major Negro league teams
AL NL NNL ECL
Boston Red Sox Boston Braves Birmingham Black Barons* Atlantic City Bacharach Giants
Chicago White Sox Brooklyn Robins Chicago American Giants Baltimore Black Sox
Cleveland Indians Chicago Cubs Cleveland Browns§ Brooklyn Royal Giants
Detroit Tigers Cincinnati Reds Cuban Stars (West) Cuban Stars (East)
New York Yankees New York Giants Detroit Stars Harrisburg Giants*
Philadelphia Athletics Philadelphia Phillies Indianapolis ABCs Hilldale Club
St. Louis Browns Pittsburgh Pirates Kansas City Monarchs New York Lincoln Giants
Washington Senators St. Louis Cardinals Memphis Red Sox* Washington Potomacs*
St. Louis Stars

1925

Team folded mid-season ^Team withdrew after this season ^^
1925 Major League teams & 1925 major Negro league teams
AL NL NNL ECL
Boston Red Sox Boston Braves Birmingham Black Barons^^ Atlantic City Bacharach Giants
Chicago White Sox Brooklyn Robins Chicago American Giants Baltimore Black Sox
Cleveland Indians Chicago Cubs Cuban Stars (West) Brooklyn Royal Giants
Detroit Tigers Cincinnati Reds Detroit Stars Cuban Stars (East)
New York Yankees New York Giants Indianapolis ABCs Harrisburg Giants
Philadelphia Athletics Philadelphia Phillies Kansas City Monarchs Hilldale Club
St. Louis Browns Pittsburgh Pirates Memphis Red Sox^^ New York Lincoln Giants
Washington Senators St. Louis Cardinals St. Louis Stars Wilmington Potomacs^

1926

Only season in NNL or ECL, folded mid-season §Team folded after this season ^Last season in NNL, withdrew mid-season ^^
1926 Major League teams & 1926 major Negro league teams
AL NL NNL ECL
Boston Red Sox Boston Braves Chicago American Giants Atlantic City Bacharach Giants
Chicago White Sox Brooklyn Robins Cleveland Elites§ Baltimore Black Sox
Cleveland Indians Chicago Cubs Dayton Marcos^^ Brooklyn Royal Giants
Detroit Tigers Cincinnati Reds Cuban Stars (West) Cuban Stars (East)
New York Yankees New York Giants Detroit Stars Harrisburg Giants
Philadelphia Athletics Philadelphia Phillies Indianapolis ABCs^ Hilldale Club
St. Louis Browns Pittsburgh Pirates Kansas City Monarchs New York Lincoln Giants
Washington Senators St. Louis Cardinals St. Louis Stars Newark Stars§

1927

Team rejoined from minor league Negro Southern League **Only season in NNL §Last season in NNL or ECL ^Team departed after this season ^^
1927 Major League teams & 1927 major Negro league teams
AL NL NNL ECL
Boston Red Sox Boston Braves Birmingham Black Barons** Atlantic City Bacharach Giants
Chicago White Sox Brooklyn Robins Chicago American Giants Baltimore Black Sox
Cleveland Indians Chicago Cubs Cleveland Hornets§ Brooklyn Royal Giants^
Detroit Tigers Cincinnati Reds Cuban Stars (West) Cuban Stars (East)
New York Yankees New York Giants Detroit Stars Harrisburg Giants^
Philadelphia Athletics Philadelphia Phillies Kansas City Monarchs Hilldale Club^^
St. Louis Browns Pittsburgh Pirates Memphis Red Sox** New York Lincoln Giants
Washington Senators St. Louis Cardinals St. Louis Stars

1928: Last ECL season

First season in MLB *Only season in NNL or ECL §Last MLB season ^
1928 Major League teams & 1928 major Negro league teams
AL NL NNL ECL
Boston Red Sox Boston Braves Birmingham Black Barons Atlantic City Bacharach Giants
Chicago White Sox Brooklyn Robins Chicago American Giants Baltimore Black Sox
Cleveland Indians Chicago Cubs Cleveland Tigers§ Cuban Stars (East)
Detroit Tigers Cincinnati Reds Cuban Stars (West) New York Lincoln Giants
New York Yankees New York Giants Detroit Stars Philadelphia Tigers§
Philadelphia Athletics Philadelphia Phillies Kansas City Monarchs  
St. Louis Browns Pittsburgh Pirates Memphis Red Sox
Washington Senators St. Louis Cardinals St. Louis Stars

1929: Only American Negro League (ANL) season

Team folded after this season ^Team independent after this season ^^
1929 Major League teams & 1929 major Negro league teams
AL NL NNL ANL
Boston Red Sox Boston Braves Birmingham Black Barons Atlantic City Bacharach Giants^
Chicago White Sox Brooklyn Robins Chicago American Giants Baltimore Black Sox^^
Cleveland Indians Chicago Cubs Cuban Stars (West) Cuban Stars (East)^
Detroit Tigers Cincinnati Reds Detroit Stars Hilldale Club^^
New York Yankees New York Giants Kansas City Monarchs Homestead Grays^^
Philadelphia Athletics Philadelphia Phillies Memphis Red Sox New York Lincoln Giants^^
St. Louis Browns Pittsburgh Pirates St. Louis Stars  
Washington Senators St. Louis Cardinals

1930

First season in NNL *Team folded after this season ^Team departed after this season ^^
1930 Major League teams & 1930 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Birmingham Black Barons^^
Chicago White Sox Brooklyn Robins Chicago American Giants
Cleveland Indians Chicago Cubs Cuban Stars^
Detroit Tigers Cincinnati Reds Detroit Stars
New York Yankees New York Giants Kansas City Monarchs^^
Philadelphia Athletics Philadelphia Phillies Louisville Black Caps*
St. Louis Browns Pittsburgh Pirates Memphis Red Sox^^
Washington Senators St. Louis Cardinals Nashville Elite Giants*
St. Louis Stars

1931: Last NNL season

First season in NNL *Team folded after this season ^
1931 Major League teams & 1931 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Chicago Columbia Giants
Chicago White Sox Brooklyn Robins Cleveland Cubs
Cleveland Indians Chicago Cubs Detroit Stars^
Detroit Tigers Cincinnati Reds Indianapolis ABCs*
New York Yankees New York Giants Louisville White Sox
Philadelphia Athletics Philadelphia Phillies St. Louis Stars^
St. Louis Browns Pittsburgh Pirates  
Washington Senators St. Louis Cardinals

1932: Major league NSL season and only East–West League (EWL) season

Team rejoined MLB **Only season in MLB §Team folded after this season ^Team departed after this season ^^
1932 Major League teams & 1932 major Negro league teams
AL NL NSL EWL
Boston Red Sox Boston Braves Atlanta Black Crackers^^ Baltimore Black Sox**
Chicago White Sox Brooklyn Dodgers Birmingham Black Barons^^ Cleveland Stars§
Cleveland Indians Chicago Cubs Chicago American Giants** Detroit Wolves§
Detroit Tigers Cincinnati Reds Indianapolis ABCs** Hilldale Club^
New York Yankees New York Giants Little Rock Grays§ Homestead Grays^^
Philadelphia Athletics Philadelphia Phillies Louisville Black Caps/Columbus Turf Club^ Newark Browns§
St. Louis Browns Pittsburgh Pirates Memphis Red Sox^^ Pollock's Cuban Stars§
Washington Senators St. Louis Cardinals Monroe Monarchs§ Washington Pilots§
   Montgomery Grey Sox§ 
Nashville Elite Giants**

1933: Establishment of the second NNL

First season in NNL *Team moved from former EWL or NSL **Only season in NNL, folded mid-season §Only season in NNL, joined mid-season §§Team folded after this season ^Team departed after this season ^^
1933 Major League teams & 1933 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Akron Grays/Cleveland Giants§§^
Chicago White Sox Brooklyn Dodgers Baltimore Sox**
Cleveland Indians Chicago Cubs Chicago American Giants**
Detroit Tigers Cincinnati Reds Columbus Blue Birds§
New York Yankees New York Giants Homestead Grays^^
Philadelphia Athletics Philadelphia Phillies Indianapolis ABCs/Detroit Stars^
St. Louis Browns Pittsburgh Pirates Nashville Elite Giants**
Washington Senators St. Louis Cardinals Pittsburgh Crawfords*

1934

First season in NNL *Only season in NNL §Team folded after this season ^
1934 Major League teams & 1934 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Baltimore Black Sox^
Chicago White Sox Brooklyn Dodgers Chicago American Giants
Cleveland Indians Chicago Cubs Cleveland Red Sox§
Detroit Tigers Cincinnati Reds Nashville Elite Giants
New York Yankees New York Giants Newark Dodgers*
Philadelphia Athletics Philadelphia Phillies Philadelphia Bacharach Giants§
St. Louis Browns Pittsburgh Pirates Philadelphia Stars*
Washington Senators St. Louis Cardinals Pittsburgh Crawfords

1935

First season in NNL *Team rejoined MLB **Only season in NNL §Team folded after this season ^Team departed after this season ^^
1935 Major League teams & 1935 major Negro league teams
AL NL NNL
Boston Red Sox Boston Braves Brooklyn Eagles§
Chicago White Sox Brooklyn Dodgers Chicago American Giants^^
Cleveland Indians Chicago Cubs Columbus Elite Giants
Detroit Tigers Cincinnati Reds Homestead Grays**
New York Yankees New York Giants New York Cubans*
Philadelphia Athletics Philadelphia Phillies Newark Dodgers^
St. Louis Browns Pittsburgh Pirates Philadelphia Stars
Washington Senators St. Louis Cardinals Pittsburgh Crawfords

1936

First season in NNL *Team departed after this season ^^
1936 Major League teams & 1936 major Negro league teams
AL NL NNL
Boston Red Sox Boston Bees Homestead Grays
Chicago White Sox Brooklyn Dodgers New York Black Yankees*
Cleveland Indians Chicago Cubs New York Cubans^^
Detroit Tigers Cincinnati Reds Newark Eagles*
New York Yankees New York Giants Philadelphia Stars
Philadelphia Athletics Philadelphia Phillies Pittsburgh Crawfords
St. Louis Browns Pittsburgh Pirates Washington Elite Giants
Washington Senators St. Louis Cardinals

1937: Founding of the Negro American League (NAL)

Team rejoined MLB **Only season in NAL §
1937 Major League teams & 1937 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Bees Birmingham Black Barons** Homestead Grays
Chicago White Sox Brooklyn Dodgers Chicago American Giants** New York Black Yankees
Cleveland Indians Chicago Cubs Cincinnati Tigers§ Newark Eagles
Detroit Tigers Cincinnati Reds Detroit Stars§ Philadelphia Stars
New York Yankees New York Giants Indianapolis Athletics§ Pittsburgh Crawfords
Philadelphia Athletics Philadelphia Phillies Kansas City Monarchs** Washington Elite Giants
St. Louis Browns Pittsburgh Pirates Memphis Red Sox** 
Washington Senators St. Louis Cardinals St. Louis Stars§

1938

First season in NAL *Team rejoined MLB **Only season in NNL §Team departed after this season ^^
1938 Major League teams & 1938 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Bees Atlanta Black Crackers** Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Birmingham Black Barons^^ Homestead Grays
Cleveland Indians Chicago Cubs Chicago American Giants New York Black Yankees
Detroit Tigers Cincinnati Reds Indianapolis ABCs* Newark Eagles
New York Yankees New York Giants Jacksonville Red Caps* Philadelphia Stars
Philadelphia Athletics Philadelphia Phillies Kansas City Monarchs Pittsburgh Crawfords
St. Louis Browns Pittsburgh Pirates Memphis Red Sox Washington Black Senators§
Washington Senators St. Louis Cardinals

1939

Team joined NAL or rejoined NNL **Team folded after this season ^Team left NNL mid-season ^^
1939 Major League teams & 1939 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Bees Chicago American Giants Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Cleveland Bears Homestead Grays
Cleveland Indians Chicago Cubs Indianapolis ABCs^ New York Black Yankees
Detroit Tigers Cincinnati Reds Kansas City Monarchs New York Cubans**
New York Yankees New York Giants Memphis Red Sox Newark Eagles
Philadelphia Athletics Philadelphia Phillies St. Louis Stars Philadelphia Stars
St. Louis Browns Pittsburgh Pirates Toledo Crawfords** Toledo Crawfords^^
Washington Senators St. Louis Cardinals

1940

Team rejoined NAL **Team folded after this season ^
1940 Major League teams & 1940 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Bees Birmingham Black Barons** Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Chicago American Giants Homestead Grays
Cleveland Indians Chicago Cubs Cleveland Bears New York Black Yankees
Detroit Tigers Cincinnati Reds Kansas City Monarchs New York Cubans
New York Yankees New York Giants Memphis Red Sox Newark Eagles
Philadelphia Athletics Philadelphia Phillies St. Louis–New Orleans Stars Philadelphia Stars
St. Louis Browns Pittsburgh Pirates Toledo–Indianapolis Crawfords^ 
Washington Senators St. Louis Cardinals

1941

Team temporarily folded after this season ^^
1941 Major League teams & 1941 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Braves Birmingham Black Barons Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Chicago American Giants Homestead Grays
Cleveland Indians Chicago Cubs Jacksonville Red Caps New York Black Yankees
Detroit Tigers Cincinnati Reds Kansas City Monarchs New York Cubans
New York Yankees New York Giants Memphis Red Sox Newark Eagles
Philadelphia Athletics Philadelphia Phillies St. Louis–New Orleans Stars^^ Philadelphia Stars
St. Louis Browns Pittsburgh Pirates   
Washington Senators St. Louis Cardinals

1942

First season in NAL *Team left mid-season ^
1942 Major League teams & 1942 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Braves Birmingham Black Barons Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Chicago American Giants Homestead Grays
Cleveland Indians Chicago Cubs Cincinnati–Cleveland Buckeyes* New York Black Yankees
Detroit Tigers Cincinnati Reds Jacksonville Red Caps^ New York Cubans
New York Yankees New York Giants Kansas City Monarchs Newark Eagles
Philadelphia Athletics Philadelphia Phils Memphis Red Sox Philadelphia Stars
St. Louis Browns Pittsburgh Pirates   
Washington Senators St. Louis Cardinals

1943

First season in NAL *Team folds mid-season ^
1943 Major League teams & 1943 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Braves Birmingham Black Barons Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Chicago American Giants Harrisburg–St. Louis Stars^
Cleveland Indians Chicago Cubs Cincinnati Clowns* Homestead Grays
Detroit Tigers Cincinnati Reds Cleveland Buckeyes New York Black Yankees
New York Yankees New York Giants Kansas City Monarchs New York Cubans
Philadelphia Athletics Philadelphia Phillies Memphis Red Sox Newark Eagles
St. Louis Browns Pittsburgh Pirates   Philadelphia Stars
Washington Senators St. Louis Cardinals

1944

The Cincinnati Clowns split their home games between Cincinnati, Ohio and Indianapolis, Indiana and became the Cincinnati–Indianapolis Clowns, though would play more games in Indianapolis beginning in 1946.

1944 to 1946 Major League teams & 1944 to 1946 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Braves Birmingham Black Barons Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Chicago American Giants Homestead Grays
Cleveland Indians Chicago Cubs Cincinnati–Indianapolis Clowns New York Black Yankees
Detroit Tigers Cincinnati Reds Cleveland Buckeyes New York Cubans
New York Yankees New York Giants Kansas City Monarchs Newark Eagles
Philadelphia Athletics Philadelphia Phillies Memphis Red Sox Philadelphia Stars
St. Louis Browns Pittsburgh Pirates   
Washington Senators St. Louis Cardinals


Integration, end of the Negro leagues, and relocations (1947–1960)

1947

The Brooklyn Dodgers, Cleveland Indians, and St. Louis Browns integrated.

Team has yet to integrate †
1947 Major League teams & 1947 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Braves Birmingham Black Barons Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Chicago American Giants Homestead Grays
Cleveland Indians Chicago Cubs Cleveland Buckeyes New York Black Yankees
Detroit Tigers Cincinnati Reds Cincinnati–Indianapolis Clowns New York Cubans
New York Yankees New York Giants Kansas City Monarchs Newark Eagles
Philadelphia Athletics Philadelphia Phillies Memphis Red Sox Philadelphia Stars
St. Louis Browns Pittsburgh Pirates  
Washington Senators St. Louis Cardinals

1948

Team has yet to integrate †Team folded after this season ^
1948 Major League teams & 1948 major Negro league teams
AL NL NAL NNL
Boston Red Sox Boston Braves Birmingham Black Barons Baltimore Elite Giants
Chicago White Sox Brooklyn Dodgers Chicago American Giants Homestead Grays
Cleveland Indians Chicago Cubs Cleveland Buckeyes New York Black Yankees^
Detroit Tigers Cincinnati Reds Indianapolis Clowns New York Cubans
New York Yankees New York Giants Kansas City Monarchs Newark Eagles
Philadelphia Athletics Philadelphia Phillies Memphis Red Sox Philadelphia Stars
St. Louis Browns Pittsburgh Pirates  
Washington Senators St. Louis Cardinals

1949

Team has yet to integrate †
1949 Major League teams
AL NL
Boston Red Sox Boston Braves
Chicago White Sox Brooklyn Dodgers
Cleveland Indians Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Yankees New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1950

The Boston Braves integrated.

Team has yet to integrate †
1950 Major League teams
AL NL
Boston Red Sox Boston Braves
Chicago White Sox Brooklyn Dodgers
Cleveland Indians Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Yankees New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1951

The Chicago White Sox integrated.

Team has yet to integrate †
1951 to 1952 Major League teams
AL NL
Boston Red Sox Boston Braves
Chicago White Sox Brooklyn Dodgers
Cleveland Indians Chicago Cubs
Detroit Tigers Cincinnati Reds
New York Yankees New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1953: Braves relocation to Milwaukee, and Cincinnati renaming

Team has yet to integrate †
1953 Major League teams
AL NL
Boston Red Sox Brooklyn Dodgers
Chicago White Sox Chicago Cubs
Cleveland Indians Cincinnati Redlegs
Detroit Tigers Milwaukee Braves
New York Yankees New York Giants
Philadelphia Athletics Philadelphia Phillies
St. Louis Browns Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1954: Browns relocation to Baltimore

Team has yet to integrate †
1954 Major League teams
AL NL
Baltimore Orioles Brooklyn Dodgers
Boston Red Sox Chicago Cubs
Chicago White Sox Cincinnati Redlegs
Cleveland Indians Milwaukee Braves
Detroit Tigers New York Giants
New York Yankees Philadelphia Phillies
Philadelphia Athletics Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1955: Athletics relocation to Kansas City

Team has yet to integrate †
1955 to 1956 Major League teams
AL NL
Baltimore Orioles Brooklyn Dodgers
Boston Red Sox Chicago Cubs
Chicago White Sox Cincinnati Redlegs
Cleveland Indians Milwaukee Braves
Detroit Tigers New York Giants
Kansas City Athletics Philadelphia Phillies
New York Yankees Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1957

The Philadelphia Phillies integrated.

Team has yet to integrate †
1957 Major League teams
AL NL
Baltimore Orioles Brooklyn Dodgers
Boston Red Sox Chicago Cubs
Chicago White Sox Cincinnati Redlegs
Cleveland Indians Milwaukee Braves
Detroit Tigers New York Giants
Kansas City Athletics Philadelphia Phillies
New York Yankees Pittsburgh Pirates
Washington Senators St. Louis Cardinals

1958: The NL exits New York for California

Team has yet to integrate †
1958 Major League teams
AL NL
Baltimore Orioles Chicago Cubs
Boston Red Sox Cincinnati Redlegs
Chicago White Sox Los Angeles Dodgers
Cleveland Indians Milwaukee Braves
Detroit Tigers Philadelphia Phillies
Kansas City Athletics Pittsburgh Pirates
New York Yankees St. Louis Cardinals
Washington Senators San Francisco Giants

1959: Cincinnati reverts back to the Reds

1959 to 1960 Major League teams
AL NL
Baltimore Orioles Chicago Cubs
Boston Red Sox Cincinnati Reds
Chicago White Sox Los Angeles Dodgers
Cleveland Indians Milwaukee Braves
Detroit Tigers Philadelphia Phillies
Kansas City Athletics Pittsburgh Pirates
New York Yankees St. Louis Cardinals
Washington Senators San Francisco Giants

First expansion (1961–1968)

1961 relocation and expansion

1961 expansion team *
1961 Major League teams
AL NL
Baltimore Orioles Chicago Cubs
Boston Red Sox Cincinnati Reds
Chicago White Sox Los Angeles Dodgers
Cleveland Indians Milwaukee Braves
Detroit Tigers Philadelphia Phillies
Kansas City Athletics Pittsburgh Pirates
Los Angeles Angels* St. Louis Cardinals
Minnesota Twins San Francisco Giants
New York Yankees  
Washington Senators*

1962 expansion

1962 expansion team *
1962 to 1964 Major League teams
AL NL
Baltimore Orioles Chicago Cubs
Boston Red Sox Cincinnati Reds
Chicago White Sox Houston Colt .45s*
Cleveland Indians Los Angeles Dodgers
Detroit Tigers Milwaukee Braves
Kansas City Athletics New York Mets*
Los Angeles Angels Philadelphia Phillies
Minnesota Twins Pittsburgh Pirates
New York Yankees St. Louis Cardinals
Washington Senators San Francisco Giants

1965: Houston and Angels renaming

1965 Major League teams
AL NL
Baltimore Orioles Chicago Cubs
Boston Red Sox Cincinnati Reds
California/Los Angeles Angels Houston Astros
Chicago White Sox Los Angeles Dodgers
Cleveland Indians Milwaukee Braves
Detroit Tigers New York Mets
Kansas City Athletics Philadelphia Phillies
Minnesota Twins Pittsburgh Pirates
New York Yankees St. Louis Cardinals
Washington Senators San Francisco Giants

1966: Braves relocation to Atlanta

The Milwaukee Braves moved to Atlanta and became the Atlanta Braves.

1966 to 1967 Major League teams
AL NL
Baltimore Orioles Atlanta Braves
Boston Red Sox Chicago Cubs
California Angels Cincinnati Reds
Chicago White Sox Houston Astros
Cleveland Indians Los Angeles Dodgers
Detroit Tigers New York Mets
Kansas City Athletics Philadelphia Phillies
Minnesota Twins Pittsburgh Pirates
New York Yankees St. Louis Cardinals
Washington Senators San Francisco Giants

1968: Athletics relocation to Oakland

The Kansas City Athletics moved to Oakland, California, and became the Oakland Athletics.

1968 Major League teams
AL NL
Baltimore Orioles Atlanta Braves
Boston Red Sox Chicago Cubs
California Angels Cincinnati Reds
Chicago White Sox Houston Astros
Cleveland Indians Los Angeles Dodgers
Detroit Tigers New York Mets
Minnesota Twins Philadelphia Phillies
New York Yankees Pittsburgh Pirates
Oakland Athletics St. Louis Cardinals
Washington Senators San Francisco Giants

Birth of division play (1969–1993)

1969 expansion and realignment

1969 expansion team *
1969 Major League teams
AL NL
East West East West
Baltimore Orioles California Angels Chicago Cubs Atlanta Braves
Boston Red Sox Chicago White Sox Montreal Expos* Cincinnati Reds
Cleveland Indians Kansas City Royals* New York Mets Houston Astros
Detroit Tigers Minnesota Twins Philadelphia Phillies Los Angeles Dodgers
New York Yankees Oakland Athletics Pittsburgh Pirates San Diego Padres*
Washington Senators Seattle Pilots* St. Louis Cardinals San Francisco Giants

1970: Pilots relocation to Milwaukee

The Seattle Pilots moved to Milwaukee and became the Milwaukee Brewers.

1970 to 1971 Major League teams
AL NL
East West East West
Baltimore Orioles California Angels Chicago Cubs Atlanta Braves
Boston Red Sox Chicago White Sox Montreal Expos Cincinnati Reds
Cleveland Indians Kansas City Royals New York Mets Houston Astros
Detroit Tigers Milwaukee Brewers Philadelphia Phillies Los Angeles Dodgers
New York Yankees Minnesota Twins Pittsburgh Pirates San Diego Padres
Washington Senators Oakland Athletics St. Louis Cardinals San Francisco Giants

1972: Senators relocation to the Dallas–Fort Worth metroplex

1972 to 1976 Major League teams
AL NL
East West East West
Baltimore Orioles California Angels Chicago Cubs Atlanta Braves
Boston Red Sox Chicago White Sox Montreal Expos Cincinnati Reds
Cleveland Indians Kansas City Royals New York Mets Houston Astros
Detroit Tigers Minnesota Twins Philadelphia Phillies Los Angeles Dodgers
Milwaukee Brewers Oakland Athletics Pittsburgh Pirates San Diego Padres
New York Yankees Texas Rangers St. Louis Cardinals San Francisco Giants

1977 expansion

1977 expansion team *
1977 to 1992 Major League teams
AL NL
East West East West
Baltimore Orioles California Angels Chicago Cubs Atlanta Braves
Boston Red Sox Chicago White Sox Montreal Expos Cincinnati Reds
Cleveland Indians Kansas City Royals New York Mets Houston Astros
Detroit Tigers Minnesota Twins Philadelphia Phillies Los Angeles Dodgers
Milwaukee Brewers Oakland Athletics Pittsburgh Pirates San Diego Padres
New York Yankees Seattle Mariners* St. Louis Cardinals San Francisco Giants
Toronto Blue Jays* Texas Rangers  

1993 expansion

1993 expansion team *
1993 Major League teams
AL NL
East West East West
Baltimore Orioles California Angels Chicago Cubs Atlanta Braves
Boston Red Sox Chicago White Sox Florida Marlins* Cincinnati Reds
Cleveland Indians Kansas City Royals Montreal Expos Colorado Rockies*
Detroit Tigers Minnesota Twins New York Mets Houston Astros
Milwaukee Brewers Oakland Athletics Philadelphia Phillies Los Angeles Dodgers
New York Yankees Seattle Mariners Pittsburgh Pirates San Diego Padres
Toronto Blue Jays Texas Rangers St. Louis Cardinals San Francisco Giants

Wild Card era (1994–present)

1994 realignment

MLB realigned to three divisions in each league to accommodate an expanded postseason format with a wild card team (although this new playoff format would not be fully implemented until 1995 due to a work stoppage):

1994 to 1996 Major League teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox California Angels Atlanta Braves Chicago Cubs Colorado Rockies
Boston Red Sox Cleveland Indians Oakland Athletics Florida Marlins Cincinnati Reds Los Angeles Dodgers
Detroit Tigers Kansas City Royals Seattle Mariners Montreal Expos Houston Astros San Diego Padres
New York Yankees Milwaukee Brewers Texas Rangers New York Mets Pittsburgh Pirates San Francisco Giants
Toronto Blue Jays Minnesota Twins   Philadelphia Phillies St. Louis Cardinals  

1997: Angels renaming

The California Angels became the Anaheim Angels.

1997 Major League teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Anaheim Angels Atlanta Braves Chicago Cubs Colorado Rockies
Boston Red Sox Cleveland Indians Oakland Athletics Florida Marlins Cincinnati Reds Los Angeles Dodgers
Detroit Tigers Kansas City Royals Seattle Mariners Montreal Expos Houston Astros San Diego Padres
New York Yankees Milwaukee Brewers Texas Rangers New York Mets Pittsburgh Pirates San Francisco Giants
Toronto Blue Jays Minnesota Twins   Philadelphia Phillies St. Louis Cardinals  

1998 expansion

1998 expansion team *
1998 to 1999 Major League teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Anaheim Angels Atlanta Braves Chicago Cubs Arizona Diamondbacks*
Boston Red Sox Cleveland Indians Oakland Athletics Florida Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Seattle Mariners Montreal Expos Houston Astros Los Angeles Dodgers
Tampa Bay Devil Rays* Kansas City Royals Texas Rangers New York Mets Milwaukee Brewers San Diego Padres
Toronto Blue Jays Minnesota Twins   Philadelphia Phillies Pittsburgh Pirates San Francisco Giants
  St. Louis Cardinals  

The American League and National League dissolve as legal entities, merging to form the legal entity of Major League Baseball.

2000 to 2004 MLB teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Anaheim Angels Atlanta Braves Chicago Cubs Arizona Diamondbacks
Boston Red Sox Cleveland Indians Oakland Athletics Florida Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Seattle Mariners Montreal Expos Houston Astros Los Angeles Dodgers
Tampa Bay Devil Rays Kansas City Royals Texas Rangers New York Mets Milwaukee Brewers San Diego Padres
Toronto Blue Jays Minnesota Twins   Philadelphia Phillies Pittsburgh Pirates San Francisco Giants
  St. Louis Cardinals  

2005: Expos relocation and Angels renaming

2005 to 2007 MLB teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Los Angeles Angels of Anaheim Atlanta Braves Chicago Cubs Arizona Diamondbacks
Boston Red Sox Cleveland Indians Oakland Athletics Florida Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Seattle Mariners New York Mets Houston Astros Los Angeles Dodgers
Tampa Bay Devil Rays Kansas City Royals Texas Rangers Philadelphia Phillies Milwaukee Brewers San Diego Padres
Toronto Blue Jays Minnesota Twins   Washington Nationals Pittsburgh Pirates San Francisco Giants
  St. Louis Cardinals  

2008: Tampa Bay renaming

The Tampa Bay Devil Rays became the Tampa Bay Rays.

2008 to 2011 MLB teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Los Angeles Angels of Anaheim Atlanta Braves Chicago Cubs Arizona Diamondbacks
Boston Red Sox Cleveland Indians Oakland Athletics Florida Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Seattle Mariners New York Mets Houston Astros Los Angeles Dodgers
Tampa Bay Rays Kansas City Royals Texas Rangers Philadelphia Phillies Milwaukee Brewers San Diego Padres
Toronto Blue Jays Minnesota Twins   Washington Nationals Pittsburgh Pirates San Francisco Giants
  St. Louis Cardinals  

2012: Marlins renaming

The Florida Marlins became the Miami Marlins.

2012 MLB teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Los Angeles Angels of Anaheim Atlanta Braves Chicago Cubs Arizona Diamondbacks
Boston Red Sox Cleveland Indians Oakland Athletics Miami Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Seattle Mariners New York Mets Houston Astros Los Angeles Dodgers
Tampa Bay Rays Kansas City Royals Texas Rangers Philadelphia Phillies Milwaukee Brewers San Diego Padres
Toronto Blue Jays Minnesota Twins   Washington Nationals Pittsburgh Pirates San Francisco Giants
  St. Louis Cardinals  

2013: Astros switch leagues

With interleague play expanded to occur throughout the season, the Houston Astros transferred to the AL West to accommodate each league with 15 clubs apiece.

2013 to 2015 MLB teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Houston Astros Atlanta Braves Chicago Cubs Arizona Diamondbacks
Boston Red Sox Cleveland Indians Los Angeles Angels of Anaheim Miami Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Oakland Athletics New York Mets Milwaukee Brewers Los Angeles Dodgers
Tampa Bay Rays Kansas City Royals Seattle Mariners Philadelphia Phillies Pittsburgh Pirates San Diego Padres
Toronto Blue Jays Minnesota Twins Texas Rangers Washington Nationals St. Louis Cardinals San Francisco Giants

2016: Angels renaming

The Los Angeles Angels of Anaheim became the Los Angeles Angels.

2016 to 2021 MLB teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Houston Astros Atlanta Braves Chicago Cubs Arizona Diamondbacks
Boston Red Sox Cleveland Indians Los Angeles Angels Miami Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Oakland Athletics New York Mets Milwaukee Brewers Los Angeles Dodgers
Tampa Bay Rays Kansas City Royals Seattle Mariners Philadelphia Phillies Pittsburgh Pirates San Diego Padres
Toronto Blue Jays Minnesota Twins Texas Rangers Washington Nationals St. Louis Cardinals San Francisco Giants

2022: Cleveland renaming

The Cleveland Indians became the Cleveland Guardians.

2022 to present MLB teams
AL NL
East Central West East Central West
Baltimore Orioles Chicago White Sox Houston Astros Atlanta Braves Chicago Cubs Arizona Diamondbacks
Boston Red Sox Cleveland Guardians Los Angeles Angels Miami Marlins Cincinnati Reds Colorado Rockies
New York Yankees Detroit Tigers Oakland Athletics New York Mets Milwaukee Brewers Los Angeles Dodgers
Tampa Bay Rays Kansas City Royals Seattle Mariners Philadelphia Phillies Pittsburgh Pirates San Diego Padres
Toronto Blue Jays Minnesota Twins Texas Rangers Washington Nationals St. Louis Cardinals San Francisco Giants

See also

Related Research Articles

<span class="mw-page-title-main">National League (baseball)</span> League within Major League Baseball

The National League of Professional Baseball Clubs, known simply as the National League (NL), is the older of two leagues constituting Major League Baseball (MLB) in the United States and Canada, and the world's oldest extant professional team sports league. Founded on February 2, 1876, to replace the National Association of Professional Base Ball Players (NAPBBP) of 1871–1875, the NL is sometimes called the Senior Circuit, in contrast to MLB's other league, the American League, which was founded 25 years later and is called the "Junior Circuit". Both leagues currently have 15 teams.

The following is a list of United States Major League Baseball teams that played in the National League during the 19th century. None of these teams, other than Athletic and Mutual, had actual names during this period; sportswriters however often applied creative monickers which are still, mistakenly, used today as "team names" following a convention established in 1951.

The American Association of Base Ball Clubs (AA) was a professional baseball league that existed for 10 seasons from 1882 to 1891. Together with the National League (NL), founded in 1876, the AA participated in an early version of the World Series seven times versus the champion of the NL in an interleague championship playoff tournament. At the end of its run, several AA franchises joined the NL. After 1891, the NL existed alone, with each season's champions being awarded the Temple Cup (1894–1897).

The Negro American League was one of the several Negro leagues created during the time organized American baseball was segregated. The league was established in 1937, and disbanded after its 1962 season.

<span class="mw-page-title-main">Eastern Colored League</span> Negro League Baseball

The Mutual Association of Eastern Colored Clubs, more commonly known as the Eastern Colored League (ECL), was one of the several Negro leagues, which operated during the time organized baseball was segregated.

The first Negro National League (NNL) was one of the several Negro leagues that were established during the period in the United States when organized baseball was segregated. The league was formed in 1920 with former player Rube Foster as its president.

The second Negro National League was one of the several Negro leagues that were established during the period in the United States when organized baseball was segregated. The league was founded in 1933 by businessman Gus Greenlee of Pittsburgh.

The Intercounty Baseball League (IBL) is a Canadian baseball league, comprising teams of college players and former professionals from North America and beyond. The teams are located in Southern Ontario.

The Western League was the name of several minor league baseball leagues that operated between 1885 and 1900. These leagues were focused mainly in the Midwestern United States.

The following are the baseball events of the year 1967 throughout the world.

The following are the baseball events of the year 1964 throughout the world.

The following are the baseball events of the year 1962 throughout the world.

The following are the baseball events of the year 1959 throughout the world.

The following are the baseball events of the year 1958 throughout the world.

The following are the baseball events of the year 1901 throughout the world.

The following are the baseball events of the year 1930 throughout the world.

The following are the baseball events of the year 1928 throughout the world.

References

  1. "MLB officially designates the Negro Leagues as 'Major League'". MLB.com. Retrieved 2022-10-23.
  2. According to the National League's 1877 Constitution, the member clubs were given as "Boston B. B. Club, Chicago B. B. Club, Cincinnati B. B. Club, Hartford B. B. Club, Louisville B. B. Club, St. Louis B. B. Club." Constitution and Playing Rules of the National League of Professional Base Ball Clubs. Chicago, A. G. Spalding 1877.
  3. sabr. "Kings of the Hill: The Story of the Pittsburgh Crawfords – Society for American Baseball Research" . Retrieved 2024-04-30.