At the beginning of the 1937-38 season, after two seasons as an “amateur” league, the Midwest Basketball Conference ended the transparent charade and formally restructured as a professional circuit, calling itself the National Basketball League. Pro basketball now had two recognized major leagues, but the contrasts in style of play, player personnel, and ownership between the two leagues far outweighed the similarities.
After the 1948–49 season, its twelfth, it merged with the Basketball Association of America (BAA) to create the National Basketball Association (NBA).
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