The Boston Celtics, based in Boston, Massachusetts, are one of the most storied franchises in the National Basketball Association and a cornerstone of the league's Eastern Conference. The Celtics play their home games at the historic TD Garden. Founded in 1946, the team's iconic colors are green and white, with ownership led by Boston Basketball Partners and coaching by Joe Mazzulla. The team's name was chosen to reflect Boston's rich Irish heritage. The Celtics' early years were defined by the arrival of legendary coach Red Auerbach, who built a dynasty in the late 1950s and 1960s, led by Bill Russell, that captured an unprecedented 11 championships in 13 years. The franchise's peak era continued with the Larry Bird, Kevin McHale, and Robert Parish teams of the 1980s, adding three more titles in fierce battles with the Lakers. In the modern era, the Celtics returned to the pinnacle in 2008 with a championship led by Paul Pierce, Kevin Garnett, and Ray Allen. Today, the team remains a perennial contender, built around stars Jayson Tatum and Jaylen Brown, consistently challenging for Eastern Conference supremacy. The Celtics boast one of the most passionate and widespread fan bases in sports, known as "Celtics Nation," with the mascot Lucky the Leprechaun and an arena atmosphere steeped in tradition. The Boston Celtics are not just a team but an institution, synonymous with excellence, teamwork, and a relentless pursuit of banner number 18.