Independent Political Labour League was created in 1904.
Independent Women's Football League was created in 2000.
League for Independent Political Action was created in 1928.
League of Independent Workers of the San Joaquin Valley was created in 2004.
Minor league baseball was created in 1901.
Australian Baseball League was created in 2009.
Western Baseball League was created in 1994.
Intercounty Baseball League was created in 1919.
Ladies League Baseball was created in 1997.
Continental Baseball League was created in 2006.
United League Baseball was created in 2006.
Eastern League - baseball - was created in 1923.