Pittsburgh Pirates Franchise History

5 World Series championship seasons: 1909, 1925, 1960, 1971, 1979
Last World Series championship: 1979, 40 seasons ago
 
Best finish:
beat Detroit in World Series in 1909 season
beat Wash Senators in World Series in 1925 season
beat NY Yankees in World Series in 1960 season
beat Baltimore in World Series in 1971 season
beat Baltimore in World Series in 1979 season