National League of the North was created in 1936.
National League A was created in 1999.
National Security League was created in 1914.
A-League National Youth League was created in 2008.
Speedway National League Division Three was created in 1947.
National Rookie League was created in 2000.
National Softball League was created in 2009.
Jamaica National League was created in 2005.
National Touch League was created in 1997.
GFSN National League was created in 2002.
National League for Nursing was created in 1893.
National Super League was created in 2003.
Cuban National League was created in 1899.