May 14, 1981 (Thursday)
- 1981 NBA Finals: The Boston Celtics defeated the Houston Rockets 102-91 to win the National Basketball Association championship series, 4 games to 2.
- The collision between an express train and the rear of another passenger train, near Kyongsan, South Korea killed 53 people and injured 233 others. The first train had backed up 300 yards after striking a stalled motorcycle, and the second was unable to stop in time after rounding a blind curve.
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