The Beatles hit No. 1 for the first time in America, tragedy strikes space shuttle Columbia, and Janet Jackson suffers a Super Bowl "wardrobe malfunction," all on this day.
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NBA
1984: David Stern becomes NBA commissioner, succeeding Larry O'Brien. Stern, who joined the NBA in 1978 as general counsel and became the league's executive vice president in 1980, is credited with increasing the popularity of the NBA in the 1990s and 2000s.