Boston Celtics, American professional basketball team based in Boston, Massachusetts.
Founded in Boston in 1946 by Walter Brown, the Celtics were charter members of the Basketball Association of America, a forerunner of the NBA (established in 1949). At the time of the team’s founding, Brown also managed the Boston Garden, on whose distinctive parquet court the green-and-white-clad Celtics thrived until the franchise moved to a new arena, now known as TD Garden, in 1995–96. The team posted a losing record in each of its first four seasons, which prompted the hiring of head coach Red Auerbach in 1950.
The Celtics are regarded as the most successful basketball team in NBA history; the franchise has won the most championships in the NBA with 17 (accounting for 23.9 percent of all NBA championships since the league's founding), and currently hold the record for the most recorded wins of any NBA team.