United States Basketball League's motto is 'The League of Opportunity'.
Women's Professional Basketball League ended in 1981.
Professional Basketball League of America ended in 1948.
United States Basketball League was created in 1985.
Pacific Coast Professional Basketball League ended in 1948.
The National Basketball Association.
Leninist League - US - ended in 1950.
If you are talking about a professional basketball league, then yes. It is the National Basketball Association (NBA).
English Basketball League was created in 2003.
Turkish Basketball League was created in 1966.
Ukrainian Basketball League was created in 2008.
Premier Basketball League was created in 2007.