It is also the anniversary of a 96-87 Game 5 playoff win over the Milwaukee Bucks in the 1974 NBA Finals.
The win gave the Celtics a 3-2 lead in the series and home court advantage after forward John Havlicek and big man Dave Cowens each scored 28 points.
“We were the David and they were the Goliath,” said then-head coach Tommy Heinsohn via Onmilwaukee.com.
Boston would go on to win its 12th championship in seven games.