Fait mathématique: 83417 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 83417 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: May 21st is the day in 1979 that White Night riots in San Francisco following the manslaughter conviction of Dan White for the assassinations of George Moscone and Harvey Milk.