First Established Associations

The Originial National Basketball Association

Period: Jan 1, 1898 to Dec 31, 1904

Philadelphia Basketball League

Period: Jan 1, 1902 to Dec 31, 1909

Central Basketball League

Period: Jan 1, 1906 to Dec 31, 1912

Eastern League

Period: Jan 1, 1909 to Dec 31, 1923

Hudson River League

Period: Jan 1, 1909 to Dec 31, 1912

New York State League

Period: Jan 1, 1911 to Dec 31, 1917

Pennsylvania State League

Period: Jan 1, 1914 to Dec 31, 1918

Interstate Basketball League

Period: Jan 1, 1915 to Dec 31, 1917

New York State League

Period: Jan 1, 1919 to Dec 31, 1923

Pennsylvania State League

Period: Jan 1, 1919 to Dec 31, 1921

Interstate Basketball League

Period: Jan 1, 1919 to Dec 31, 1920

Metropolitan Basketball League

Period: Jan 1, 1921 to Dec 31, 1928

the Original American Basketball League

Period: Jan 1, 1926 to Dec 31, 1931

Metropolitan Basketball League

Period: Jan 1, 1932 to Dec 31, 1933