Disco Demolition Night was an ill-fated baseball promotion that took place on July 12, 1979, at Comiskey Park in Chicago. Wacky promotions were very common in Baseball in the 70’s, anything to liven up the slowest game on earth right?
Apparently, the people behind the Chicago promo hadn’t learned a lesson from the disaster of the Cleveland 10 Cent Beer Night event in 1973.
At the climax of the event, a crate filled with disco records was blown up on the field between games of the twi-night doubleheader between the Chicago White Sox and the Detroit Tigers. Many of those in attendance had come to see the explosion rather than the games and rushed onto the field after the detonation. The playing field was damaged both by the explosion and by the rowdy fans to the point where the White Sox were required to forfeit the second game of the doubleheader to the Tigers.