National League East was created in 1969.
National League A was created in 1999.
National Security League was created in 1914.
The American League West with 4. The American League East, American League Central, National League East, and National League West have 5. The National League Central has 6.
A-League National Youth League was created in 2008.
Yes, the Mets are in the East Division of the National League.
East-West League was created in 1932.
American League East was created in 1969.
Serbian League East was created in 2006.
East Northumberland League was created in 1894.
Speedway National League Division Three was created in 1947.
National Rookie League was created in 2000.
National Softball League was created in 2009.