On May 9th in sports history, one significant event took place in 1970 when the Boston Bruins won their first Stanley Cup championship in 29 years. The Bruins defeated the St. Louis Blues in a hard-fought series that went to a decisive Game 4.

The game was played at the Boston Garden, and the Bruins were led by their captain, the legendary defenseman Bobby Orr. Orr had already established himself as one of the greatest players in NHL history, but this championship would cement his legacy.

The game was a tight affair, with the Blues putting up a strong fight. However, the Bruins' offense proved too much for St. Louis to handle. In the first period, Bruins forward Johnny Bucyk scored the opening goal, giving Boston an early lead.

The Blues managed to tie the game in the second period, but the Bruins regained the lead later in the period thanks to a goal by Phil Esposito. Esposito, who was one of the most dominant scorers in NHL history, would go on to lead the league in scoring that season.

In the third period, the Bruins put the game out of reach with two more goals. The first was scored by Wayne Cashman, and the second was an empty-netter by Derek Sanderson, sealing the 4-1 victory for Boston.

The image of Bobby Orr flying through the air after scoring the championship-winning goal is one of the most iconic moments in hockey history. The goal came in overtime of Game 4, giving the Bruins a 4-3 victory and their first Stanley Cup since 1941.

The 1970 Bruins team is considered one of the greatest in NHL history, and their championship run is still remembered fondly by fans in Boston and around the world. The team featured several future Hall of Famers, including Orr, Esposito, Bucyk, and goalkeeper Gerry Cheevers.

The victory was a fitting end to a dominant season for the Bruins, who finished with a record of 40-17-19 and won the East Division by a wide margin. Orr would go on to win the Conn Smythe Trophy as playoff MVP, capping off a historic season for both him and his team.