League Histories
American
League (1901-present)
National
League (1883-present)
International
League (1885-present)
Pacific
Coast League (1903-present)
Eastern League
(1923-present)
Southern League
(1904-1917; 1919-1930; 1936-1942; 1946-present)
Texas League (1888-1890;
1902-1942; 1946-present)
California League
(1941-1942, 1946-present)
Carolina League
(1945-present)
Florida
State League (1919-1928; 1936-1941; 1946-present)
South Atlantic
(Sally) League (1960-present)
Midwest
League (1956-present)
New
York-Pennsylvania League (1939-present)
Northwest
League (1918-1922; 1937-1942; 1946-present)
Pioneer
League (1939-1942; 1946-present)
Appalachian League
(1911-1914; 1921-1925; 1937-1955; 1957-present)
Northern
League (1902; 1903-1905; 1908; 1913-1917; 1933-1942; 1946-1971;
1993-present)
Northwoods
League (1994-present)
Defunct Leagues
Alabama-Florida
League (1933-1939; 1951-1962)
Alabama
State League (1940-1941; 1946-1950)
Alabama-Tennessee
League (1921)
American Association
(1883-1891)
American Association
(1902-1962; 1969-1997)
Arizona
State League (1928-1930)
Arizona-Mexico
League (1955-1958)
Arizona-Texas
League (1931-1932; 1937-1941; 1947-1950; 1952-1954)
Arkansas
State League (1908-1909)
Arkansas
State League (1934-1935)
Arkansas-Missouri
League (1936-1940)
Arkansas-Texas
League (1908)
Atlantic
Association (1889-1890)
Atlantic
Association (1908)
Atlantic
League (1896-1900)
Atlantic
League (1914)
Bi-State League
(1915)
Bi-State League
(1934-1942)
Big
State League (1947-1957)
Blue
Grass League (1908-1912; 1922-1924)
Blue
Ridge League (1915-1918; 1920-1930)
Blue
Ridge League (1946-1950)
Border
League (1912-1913)
Border League
(1946-1951)
Buckeye
League (1915)
California League
(1887-1889; 1891; 1893; 1899-1902; 1907-1909)
California
State League (1910; 1913-1915; 1929)
Canadian League
(1899-1900; 1905; 1911; 1912-1913; 1914-1915)
Canadian-American
League (1936-1942; 1946-1951)
Cape
Breton Colliery
League (1937-1939)
Carolina
Association (1908-1912)
Central
Association / Iowa State League (1904-1917; 1947-1949)
Central League
(1888)
Central League
(1900)
Central League
(1903-1917; 1920-1922; 1926; 1928-1930; 1934; 1948-1951)
Central
California League (1910-1911)
Central
International League (1912)
Central
Interstate League (1888-1889)
Central
Kansas League (1908-1912)
Central
Pennsylvania League (1887)
Central
Texas League (1914-1917)
Coastal
Plain League (1937-1941, 1946-1952)
Colonial
League (1914-1915)
Colonial League
(1947-1950)
Connecticut
Association (1910)
Connecticut
State League (1899-1912)
Copper Country
Soo League (1905)
Cotton
States League (1902-1908; 1910-1913; 1922-1932; 1936-1941; 1947-1955)
Dakota League
(1921-1922)
Delta League
(1904)
Dixie League
(1916-1917)
Dixie League
(1933)
East Dixie League
(1934-1935)
East Texas League
(1916; 1923-1926; 1931; 1936-1940; 1946; 1949-1950)
Eastern
Association (1913-1914)
Eastern League
(1883-1886)
Eastern League
(1916-1918; 1919-1932)
Eastern
Canada League (1922-1923)
Eastern
Carolina League (1908-1910; 1928-1929)
Eastern
Illinois League (1907-1908)
Eastern
Kansas League (1910)
Eastern
Shore League (1922-1928; 1937-1941; 1946-1949)
Empire
State League (1913)
Evangeline
League (1934-1942; 1946-1957)
Far
West League (1948-1951)
Federal
League (1913-1915)
Florida-Alabama-Georgia
(FLAG) League (1915)
Florida
East Coast League (1940-1942)
Florida
International League (1946-1954)
Georgia
State League (1906; 1914)
Georgia
State League (1948-1956)
Georgia
State League (1920-1921)
Georgia-Alabama
League (1913-1917; 1928-1930; 1946-1951)
Georgia-Florida
League (1935-1942; 1946-1958; 1962-1963)
Gulf Coast League
(1907-1908; 1926; 1950; 1950-1953)
Gulf
States League (1976)
Hudson
River League (1903-1907)
Illinois
State League (1947-1948)
Illinois-Indiana
League (1892)
Illinois-Missouri League
(1908-1914)
Indiana-Michigan League
(1910)
Indiana-Ohio League
(1908)
Inland
Empire League (1908)
Inter-Mountain
League (1901)
Inter-Mountain
League (1909)
International
League (1908)
Interstate
Association (1883)
Interstate
Association (1906)
Interstate
League (1896-1901)
Interstate
League (1905-1908; 1914-1916)
Interstate
League (1913)
Interstate
League (1932)
Interstate
League (1939-1952)
Iowa
State League (1904-1907)
Iowa-South
Dakota League (1902-1903)
Iron
& Oil Association (1884)
Kansas State
League (1905-1906; 1909-1911)
Kansas
State League (1913-1914)
Kansas-Oklahoma-Missouri
(KOM) League (1946-1952)
Kentucky-Illinois-Tennessee
(Kitty) League (1903-1906; 1910-1914; 1916; 1922-1924; 1935-1942;
1946-1955)
Keystone
Association (1884)
Lone Star League
(1927-1929; 1947-1948)
Lone Star League
(1977)
Longhorn League
(1947-1955)
Louisiana
State League (1920)
Maine
State League (1907)
Michigan
State League (1889-1890; 1895; 1902; 1910-1914; 1926;
1940-1941)
Michigan-Ontario
League (1919-1926)
Middle
Atlantic League (1925-1942; 1946-1951)
Middle
Texas League (1914-1915)
Minnesota-Wisconsin
League (1909-1912)
Mississippi
State League (1921)
Mississippi
Valley League (1922-1933)
Mississippi-Ohio
Valley League (1949-1955)
Missouri
State League (1911)
Missouri
Valley League (1902-1904)
Missouri-Iowa-Nebraska-Kansas
(MINK) League (1910-1913)
Montana
State League (1900)
Mountain
State League (1937-1942)
Mountain
States League (1911-1912)
Mountain
States League (1948-1952)
Nebraska State League
(1910-1915; 1922-1923; 1928-1941, 1956-1959)
New
Brunswick-Maine League (1913)
New
England Association (1895)
New England
League (1886-1888; 1891-1899; 1901; 1902-1915; 1919; 1926-1930; 1933;
1934; 1946-1949)
New
Pacific League (1896)
New
York State League (1889)
New
York State League (1899-1917)
New
York-New Jersey League (1913)
New
York-Pennsylvania League (1891)
New
York-Pennsylvania League (1923-1937)
North
Atlantic League (1946-1950)
North
Carolina League (1902)
North
Carolina State League (1913-1917; 1937-1942; 1945-1952)
North
Dakota League (1923)
North Texas
League (1905, 1907)
Northeast
Arkansas League (1909-1911; 1936-1941)
Northeastern
League (1934)
Northern
Association (1910)
Northern Copper
League (1906-1907)
Northern
State of Indiana League (1909-1911)
Northwest
International League (1919)
Northwestern
League (1905-1917)
Ohio
State League (1887)
Ohio
State League (1908-1916; 1936-1941; 1944-1947)
Ohio-Indiana
League (1948-1951)
Ohio-Pennsylvania
League (1905-1912)
Oklahoma
State
League (1912, 1922-1924)
Oklahoma-Arkansas-Kansas
League (1907)
Oklahoma-Kansas
League (1908)
Ontario League
(1930)
Oregon
State League (1904)
Pacific
Coast International League (1918, 1920-1921)
Pacific
National League (1903-1904)
Pacific
Northwest League (1892, 1896, 1901-1902)
Palmetto League
(1931)
Panhandle-Pecos
Valley League (1923)
Pennsylvania
State Association (1934-1942)
Pennsylvania
State League (1892-1895)
Pennsylvania-Ohio-Maryland League
(1906-1907)
Pennsylvania-West
Virginia League (1908-1909)
Piedmont
League (1920-1955)
Player's
League (1890)
Potomac League
(1916)
Provincial
League (1948-1955)
Quebec
Provincial League (1940)
Quebec-Ontario-Vermont
League (1924)
Rio
Grande Association (1915)
Rio
Grande Valley League (1931; 1949-1950)
Rocky
Mountain League (1912)
San
Joaquin Valley League (1910-1911)
Sooner
State League (1947-1957)
Sophomore League
(1958-1961)
South
Carolina League (1907-1908)
South
Central League (1906, 1912)
South Dakota
League (1920, 1923)
South
Texas League (1903-1906)
Southeastern
League (1910-1912; 1926-1930; 1932; 1937-1942; 1946-1950)
Southern
Association (1885-1886; 1892-1896; 1901-1961)
Southern
California League (1913)
Southern
California Trolley League (1910)
Southern
Illinois League (1910)
Southern
Michigan Association (1910-1915)
Southern
Michigan League (1906-1909)
Southwest
International League (1951-1952)
Southwest
Iowa League (1903)
Southwest
Texas League (1910-1911)
Southwest
Washington League (1903-1906)
Southwestern League
(1904, 1921-1926)
Southwestern League
(1956-1957)
Sunset
League (1947-1950)
Tar
Heel League (1953-1954)
Texas
Association (1923-1926)
Texas Valley
League (1927-1928; 1938)
Texas-Oklahoma
League (1911-1914, 1921-1922)
Texas-Southern
League (1895-1896)
Three-I
League (1901-1917; 1919-1932; 1935; 1937-1942; 1946-1961)
Tobacco
State League (1946-1950)
Tri-State
League (1887-1890)
Tri-State
League (1904-1914)
Tri-State
League (1924)
Tri-State
League (1925-1926)
Tri-State
League (1946-1955)
Twin
Ports League (1943)
Twin
States League (1911)
Two-I
League (1892)
Union
Association (1884)
Union
Association (1911-1914)
United
States League (1912)
Utah-Idaho League
(1926-1928)
Virginia League
(1894-1896; 1900; 1906-1928; 1939-1942; 1948-1951)
Virginia
Mountain League (1914)
Virginia
Valley League (1910)
Virginia-North
Carolina League (1901, 1905)
Washington
State League (1910-1912)
West Dixie League
(1934-1935)
West
Michigan
League (1910)
West
Texas League (1920-1922; 1928-1929)
West
Texas-New Mexico League (1937-1942; 1946-1955)
West
Virginia League (1910)
Western
Association (1894-1897, 1899)
Western
Association (1901)
Western
Association (1905-1911, 1914-1917, 1920-1932, 1934-1942,
1946-1954)
Western
League (American League predecessor) (1888-1899)
Western
League (1888)
Western
League (1900-1937; 1947-1958)
Western
League (Class D) (1939-1941)
Western
Canada League (1907; 1909-1914; 1919; 1920-1921)
Western
Carolina League (1948-1952)
Western
Carolina League (1960-1962)
Western
Carolinas League (1963-1979)
Western
International League (1922)
Western
Pennsylvania League (1907)
Western
Tri-State League (1912-1914)
Wisconsin
Association (1905-1906)
Wisconsin State League
(1905-1914, 1940-1942, 1946-1953)
Wisconsin-Illinois
League (1908-1914)