May 19, 1974: The Philadelphia Flyers become the first modern NHL expansion team to win a championship, taking the Stanley Cup with a 4-2 series win over the Boston Bruins.

The Flyers became the first post-1967 team to beat an Original Six team in the postseason. Goalie Bernie Parent won the Conn Smythe trophy after shutting out the Bruins 1-0 in Game 6. Rick MacLeish scored the Cup-clinching goal.

The occasion came with some apparent good luck.

The Flyers repeated as champions in 1975 and opened the door for other expansion team to be successful.

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