The NBA is short for National Basketball Association. The league was founded in New York City on June 6, 1946 as the Basketball Association of America (BAA). The league adopted the name National Basketball Association in 1949 after merging with the rival National Basketball League (NBL). The NBA is a professional basketball league, composed of thirty teams in North America (twenty-nine in the United States and one in Canada). The NBA is one of the four major North American professional sports leagues.
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