The Boston Celtics ( SEL-tiks) are an American professional basketball team based in Boston. The Celtics compete in the National Basketball Association (NBA) as a member of the Atlantic Division of the Eastern Conference. Founded in 1946 as one of the league's original eight teams, the Celtics play their home games at TD Garden, a shared arena with the NHL's Boston Bruins. The Celtics are commonly regarded as the most successful team in NBA history and hold the records for most NBA championships won, with 18, and most recorded wins of any NBA franchise.
https://en.wikipedia.org/wiki/Boston_Celtics