National League of the North was created in 1936.
National League A was created in 1999.
A-League National Youth League was created in 2008.
National Puzzlers' League was created in 1883.
National Rugby League was created in 1997.
Belgian National League was created in 1975.
National Service League was created in 1902.
National Rookie League was created in 2000.
Jamaica National League was created in 2005.
National Touch League was created in 1997.
National League West was created in 1969.
National Dodgeball League was created in 2004.
Irish National League was created in 1882.