The Basketball Association of America ( BAA ) was founded in New York City on June 6, 1946. On November 6, 1946 the Toronto Huskies hosted the New York Knickerbockers at Maple Leaf Gardens, in a game the NBA regards as the first played in its history. On August 3 1949 the BAA agreed to absorb the NBL, creating the National Basketball Association (NBA). The Boston Celtics dominated the 60's by wining 9 out of 10 championships. In 1967 the formation of the American Basketball Association (ABA) became a treat to the NBA. In the 70's the ABA succeeded in signing a number of major stars. By 1979 the NBA added the innovative three point field goal. The currant commisioner is David Stern. The NBA has 30 teams 29 in the United States and 1 in Canada. the currant title belongs to Miami Heat and the Boston Celtics holds the most titles at 17.