(1946) Knicks are born at the first meeting of the Basketball Association of America. Other teams include Boston (Celtics), Philadelphia (Warriors), Providence (Steamrollers), Toronto (Huskies), Washington (Capitols), Chicago (Stags), Cleveland (Rebels), Detroit (Falcons), Pittsburgh (Ironmen) and St. Louis (Bombers).
UPDATE: Here is video of the franchise's (and NBA's) first game!