Independent Women's Football League was created in 2000.
Independent Political Labour League was created in 1904.
League for Independent Political Action was created in 1928.
League of Independent Workers of the San Joaquin Valley was created in 2004.
Eastern League - baseball - was created in 1923.
Ladies League Baseball was created in 1997.
Continental Baseball League was created in 2006.
Canadian Baseball League was created in 2003.
Darwin Baseball League was created in 1953.
Israel Baseball League was created in 2007.
Valley Baseball League was created in 1923.
Minor league baseball was created in 1901.