The Celtics are almost an encyclopedia of the NBA, and their history is a history of winning the championship and a history of being a star. 16 champion ranks first among NBA teams, and eight consecutive championships are hard to come by. More than 20 retirement numbers almost make the Celtics useless. 1946, 1 1 ice hockey bosses discussed the establishment of a new basketball league, so BAA came into being, and Celtic was one of the original 1 1 teams. The Celtics had a poor record in the first few years. From 1946 to 1950, they failed to enter the playoffs. Until the end of 1949- 1950 season, Celtic talents made a series of changes to rejuvenate the team. The Celtics' biggest turning point was to invite the later famous "Cardinal" auerbach as the head coach. Here, the team adjusted its lineup, including the unexpected acquisition of robertjoseph cousy. Cousy is a rookie of 1950. At that time, there were three players to choose from: Knicks, Warriors and Celtics. Nobody wanted the rookie Cousy, so they had to draw lots to decide that the Celtics "unfortunately" got Cousy. However, Cousy brought passing and passing without looking at people back to the NBA, which was refreshing. That season, Cousy scored 15.6 points and 4.9 assists, ranking first in the league. The Celtics ended the season with 39 wins and 30 losses and entered the playoffs. After 10 years of lurking, the Celts finally broke out in 1956- 1957. From 1957 to 1969, the Celtics won the championship of 1 1, which is very remarkable. 1956- 1957 season, the Celtics won bill russell and Tom heinsen. The Celtics underwent a neat plastic surgery and entered the playoffs with the league's best score of 47 wins and 28 losses, and successfully entered the finals. The Celtics tied with the St. Louis Hawks in the first six games, and the seventh game became one of the most classic battles in the NBA. Before the end of the second overtime, bob pettit of the Hawks jumped several times on the basket at the last minute and finally missed. The Celtics narrowly won 125 to 123 and won the team's first championship. After winning the championship for the first time, the Celtics were unstoppable. From 1959 to 1966, Boston Celtics won eight consecutive championships. In the 1966- 1967 season, many Celtic veterans retired, while Cousy and Heinthorne both left the team. Auerbach also resigned as head coach and began to take up the administrative position of the team. Russell took over as the head coach of the team, thus becoming the first black coach in NBA history. This year, the Celtics and the Lakers met in the finals. Game 7 lost to the Los Angeles Lakers by 106 to 108, and lost the championship. However, in the following 1968 and 1969, the Celtics won the NBA finals twice in a row. In the 1970s, the Boston Celtics were tired and won only 1974 and 1976 two championships. 1978, auerbach has a unique eye. The Celtics picked larry bird in the draft, and the Celtics ushered in a new round of glory. Throughout the 1980 s, the NBA was an era when Celtic and Lakers took turns to sit in the seat. The confrontation between Bird and Magic Johnson became the biggest attraction of NBA at that time. Celtic won the championship three times, and the last time was 1985- 1986 season. From 1986, the Celtics began to decline. 1992, larry bird retired and the Celtics became the weak team in the East. Since the 1995- 1996 season, the Celtics have failed to enter the playoffs for six consecutive years. Until the 200 1-2002 season, the Celtics reached the playoffs again under the leadership of paul pierce and antoine walker. In the 2002-2003 season, Celtic was still led by Pierce and Walker, and the reconstruction of Celtic was basically completed, and it became one of the top teams in the East again. Retired jersey number: (00) Robert parrish (1) walter brown (2) auerbach (3) dennis johnson (6). Bill russell (10) jj Wright (jo jo white) (14) robertjoseph cousy) (15) Tom heinsen) (16). Tom Zazie Saunders (17+07) Hafrey havlicek (18) David Cowens (19) donald nelson (2 1). Bill sharman (22) Ed Macaulay (23) frank ramsey (24) sam jones (25) K.C. Jones (32) kevin mchale (33). Larry bird) (35) History of reggie lewis:1946-Boston Celtics today.