Boston Celtics History Timeline

The Boston Celtics are one of the most successful franchises in National Basketball Association (NBA) history, having won 18 NBA championships as of the conclusion of the 2023-24 season. Founded in 1946 as a charter member of the Basketball Association of America (BAA), which merged with the National Basketball League in 1949 to form the NBA, the Celtics have shaped Boston sports culture for nearly eight decades. The team has produced some of basketball's most iconic players and enduring moments. This includes the unprecedented dynasty of the 1960s under coach Red Auerbach that established them as a dominant force in professional basketball. Today, the team plays its home games at TD Garden in downtown Boston and competes in the Atlantic Division of the NBA's Eastern Conference. The arena is located in the West End neighborhood, accessible via the MBTA's Green and Orange lines, and is a short walk from Boston's North End. Beyond the court, the Celtics represent the city's identity across generations of fans in Boston and worldwide.

History

Founding and Early Years (1946-1956)

Walter Brown, a Boston businessman and arena promoter, founded the Boston Celtics in 1946 as one of the eleven original franchises in the Basketball Association of America. The early years were financially difficult. Brown struggled to keep the franchise solvent through its first several seasons, and the team posted losing records more often than not. That changed in 1950, when Brown hired Arnold "Red" Auerbach as head coach. Auerbach was not merely another coach brought in to fill a roster spot. He was a tactically ambitious basketball mind who had previously coached the Washington Capitols and the Tri-Cities Blackhawks, and he arrived in Boston with a clear philosophy: team basketball, disciplined defense, and unselfishness over individual statistics. Those principles would define the Celtics for decades.

The Russell Era and the Dynasty (1956-1969)

The acquisition of Bill Russell before the 1956-57 season proved to be one of the most consequential transactions in basketball history. Auerbach persuaded the St. Louis Hawks to draft Russell second overall with the understanding that Boston would send All-Star center Ed Macauley and forward Cliff Hagan in return. Russell, a two-time NCAA champion at the University of San Francisco and a gold medalist at the 1956 Melbourne Olympics, brought a defensive presence and shot-blocking ability that the NBA had not seen before. The 1956-57 season ended with Boston's first NBA championship. A dynasty had begun.

Eight straight championships followed. From 1959 through 1966, the Celtics won eight consecutive NBA titles, a record that has never been matched in major North American professional sports. The core of those teams included Russell, guard Sam Jones, guard K.C. Jones, and forward John Havlicek, who joined the franchise in 1962 after going undrafted as a final cut from the NFL's Cleveland Browns. Havlicek became known for his relentless energy and clutch performances. His steal of Hal Greer's inbound pass to secure the 1965 Eastern Conference title, immortalized by broadcaster Johnny Most's call, remains one of the most replayed moments in basketball broadcasting history. The Celtics won 11 championships in the 13 seasons Russell played, from 1957 through 1969. Russell himself won five NBA Most Valuable Player awards during that span and made twelve All-Star appearances.

Red Auerbach retired from coaching in 1966 with an NBA regular-season record of 795 wins and 397 losses, a winning percentage of .667 that ranked among the highest in the league's history at that time. He did not leave the organization. Auerbach moved into the front office as general manager and eventually team president, continuing to shape the franchise's personnel decisions for decades. When Russell retired in 1969, he had served the final three seasons of his career as a player-coach, becoming one of the first Black head coaches in major American professional sports.

Rebuilding and the Cowens Era (1969-1978)

Russell's retirement in 1969 ended the dynasty and sent the franchise into a transitional period. The Celtics finished below .500 in 1969-70 for the first time in over a decade. But the organization drafted Dave Cowens, an undersized center with exceptional hustle and motor, in 1970. Cowens, paired with guard Jo Jo White and veteran forward John Havlicek, rebuilt the Celtics into contenders. They won the NBA championship in 1974, defeating the Milwaukee Bucks in seven games, and won again in 1976, defeating the Phoenix Suns in a six-game series that included a memorable triple-overtime Game 5 widely regarded as one of the greatest games in Finals history. Havlicek retired in 1978 after 16 seasons and eight championships, having played more games as a Celtic than any player in franchise history at that point.

The Larry Bird Era (1979-1992)

The franchise's next era of dominance began with a draft pick made a year early. In 1978, Auerbach selected Larry Bird from Indiana State University in the first round, one year before Bird was eligible to sign, a then-legal maneuver that secured his rights. Bird signed with Boston in 1979 and immediately won the NBA Rookie of the Year award. His arrival, combined with the subsequent acquisitions of center Robert Parish from Golden State in 1980 and the drafting of power forward Kevin McHale also in 1980, assembled one of the most formidable frontcourts in NBA history.

Three championships in six seasons followed. Boston won the title in 1981, 1984, and 1986. The 1984 championship came against the Los Angeles Lakers in a physically contested seven-game series that sharpened one of professional basketball's most celebrated rivalries. The 1986 team, which finished 67-15 in the regular season, is frequently cited by analysts as one of the greatest single-season teams in NBA history. Bird won three consecutive regular-season MVP awards from 1984 through 1986. Guard Dennis Johnson, acquired from the Phoenix Suns in 1983, anchored the backcourt alongside Danny Ainge and contributed to the championship runs with his defensive tenacity and shot-making in critical moments.

The Bird era ended in stages. Injuries, particularly to Bird's back and later his heels, progressively limited his availability through the late 1980s and into the early 1990s. The death of rookie Len Bias from a cocaine overdose in June 1986, just two days after Boston selected him second overall in the draft, cost the franchise its presumptive next star and is widely considered one of the most tragic what-if moments in sports history. Bird retired in 1992. The Celtics would not win another championship for sixteen years.

The Paul Pierce Era and the 2008 Championship (1998-2013)

The franchise spent much of the 1990s in decline. Coaching changes, difficult draft years, and the sustained excellence of Michael Jordan's Chicago Bulls kept the Celtics from returning to relevance during the decade. Paul Pierce, selected tenth overall in the 1998 NBA Draft, became the face of the franchise and served as its emotional core through a long period without a championship. He earned the nickname "The Truth," reportedly bestowed on him by Shaquille O'Neal after a strong individual performance in 2001. Pierce was the leading scorer on the team through its inconsistent years and remained in Boston when other stars sought more competitive situations elsewhere.

Everything changed in the summer of 2007. General manager Danny Ainge acquired Kevin Garnett from the Minnesota Timberwolves and Ray Allen from the Seattle SuperSonics in separate trades, assembling a "Big Three" around Pierce that immediately transformed the team's ceiling. The 2007-08 Celtics won 66 regular-season games and captured the NBA championship, defeating the Los Angeles Lakers in six games to end Boston's 22-year championship drought. Pierce won Finals MVP honors. The victory was the franchise's seventeenth championship and reestablished the Celtics as one of the NBA's elite organizations. The team reached the NBA Finals again in 2010, losing to the Lakers in seven games, before age and injuries gradually reduced the Big Three's effectiveness. Garnett and Allen departed after the 2013 season, and the franchise entered another rebuilding phase.

Rebuilding Around Tatum and Brown (2013-2024)

The Celtics returned to intentional rebuilding after the Big Three era. Under head coach Brad Stevens, hired in 2013 from Butler University, the franchise developed young talent and accumulated draft assets. The key selections came in successive drafts: Jaylen Brown, taken third overall in 2016, and Jayson Tatum, taken third overall in 2017. Both players developed steadily through the late 2010s. By the 2021-22 season, with Ime Udoka as head coach, the Celtics had reached the NBA Finals before losing to the Golden State Warriors in six games. Not without promise.

The 2023-24 season brought the franchise its eighteenth championship. Tatum and Brown, now established as All-Stars and franchise cornerstones, led the Celtics to a dominant postseason run under head coach Joe Mazzulla. The team defeated the Dallas Mavericks in five games in the NBA Finals, with Brown earning Finals MVP honors. The victory represented the culmination of nearly a decade of careful player development and organizational continuity, and it positioned the franchise, with two young stars under contract, as a likely contender for additional championships in the years ahead.

Culture

The Boston Celtics occupy a central place in the cultural identity of the city and the broader New England region. The franchise has produced iconic moments and players whose careers extended beyond basketball into broader American public life. Bill Russell won 11 championships in 13 seasons and became an important figure not only for his basketball accomplishments but also for his civil rights activism during a transformative period in American history. Russell was outspoken during the civil rights movement, participated in the 1963 March on Washington, and faced substantial racial hostility in Boston itself, a complicated dimension of his legacy that the franchise has acknowledged in recent years.

The Celtics' winning tradition built a culture of expectation that shaped how Boston residents thought about professional sports. Green jerseys and the Lucky the Leprechaun mascot became recognizable symbols of Boston basketball, creating a brand identity that has persisted across many decades and coaching staffs. Fans in neighborhoods including South Boston, Dorchester, and Roxbury have maintained generational loyalty to the franchise, with Celtics games serving as social occasions that brought families and communities together.

Broadcasts on local television and radio stations generated consistent viewership throughout the region, and youth basketball programs affiliated with the organization have developed talent and promoted the sport across Boston's neighborhoods. The green and white team colors appear widely across the city. Youth players, working adults, and longtime residents alike wear them year-round, not just during the playoffs, which is a degree of everyday identification that few professional sports franchises sustain across multiple decades.

Notable People

The Boston Celtics have been home to numerous players and coaches who achieved significant status in basketball and, in some cases, well beyond it.

Bill Russell is widely considered one of the greatest defensive players and team leaders in basketball history. He won 11 NBA championships in 13 seasons and later became one of the first African American head coaches in professional sports. John Havlicek, who played for the Celtics for 16 seasons from 1962 to 1978, won eight championships and built a reputation for performing well under pressure. His work ethic and conditioning were considered exceptional by the standards of his era, and he remained a starter and a key contributor well into his mid-thirties.

Larry Bird arrived in 1979 and won three championships while earning three consecutive MVP awards. He was known for his passing, shooting range, competitive focus, and detailed understanding of the game. Kevin Garnett was acquired in 2007 and contributed his defensive intensity and veteran leadership to the 2008 championship team. Red Auerbach shaped the franchise as head coach from 1950 to 1966 and then as general manager and team president for decades afterward. His influence on how the team was built, how it practiced, and what values it prioritized was far-reaching within the organization.

Jayson Tatum was selected third overall in the 2017 NBA Draft and developed into the franchise's primary star. He led the Celtics to the 2024 NBA championship and was named to multiple All-Star teams along the way. Jaylen Brown, drafted in 2016, developed into an All-Star-caliber player and won the 2024 NBA Finals MVP award. Paul Pierce served as the franchise's primary star during the 2000s and was the leading scorer on the 2008 championship team. Sam Jones and K.C. Jones were essential contributors to the 1960s dynasty, with both later becoming coaches. Thomas "Satch" Sanders, a versatile forward, won eight championships with the Celtics and later became a significant presence in the team's front office. These players and coaches collectively represent the organizational values of competitiveness, team-first basketball, and sustained excellence that have defined the Celtics throughout their history.