I am a big fan of the San Antonio Spurs.  They play in the Western Confrence of the NBA
I love watching NBA!  How old is that team?
They actually came from the old ABA and moved over to the NBA in 1976 after the merger.
What is the ABA?  I am unfamiliar with that term.
American Basketball Association
The original American Basketball Association (ABA) was a men's professional basketball league, from 1967 to 1976. The ABA ceased to exist with the American Basketball Association–National Basketball Association merger in 1976, leading to several teams joining the National Basketball Association and to the introduction of the 3-point shot in the NBA in 1979.
League history.
The ABA was conceived at a time stretching from 1960 through the mid-1970s when numerous upstart leagues were challenging, with varying degrees of success, the established major
San Antonio Spurs
The San Antonio Spurs are an American professional basketball team based in San Antonio, Texas. The Spurs compete in the National Basketball Association (NBA) as a member of the league's Western Conference Southwest Division. The team plays its home games at the AT&T Center in San Antonio.
The Spurs are one of four former American Basketball Association (ABA) teams to remain intact in the NBA after the 1976 ABA–NBA merger and are the only former ABA team to have won an NBA championship.