Fait mathématique: 9815 is an unremarkable number.
Culture générale: 9815 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: November 14th is the day in 1982 that Lech Wałęsa, the leader of Poland's outlawed Solidarity movement, is released after eleven months of internment near the Soviet border.