New York Mets def. Baltimore Orioles – 1969 World Series:
The infamous “Miracle Mets” completed their unlikely rise to legendary status in the 1969 World Series. Facing a vaunted Baltimore team that had amazing pitchers and was dubbed one of the best of all-time, the eight-year-old Mets remained unfazed.
Trouncing the Orioles in only five games, the Mets became the first expansion team to win a World Series. The Arizona Diamondbacks and Florida Marlins won the World Series faster, but the 1969 “Miracle Mets” will always be the first.