Fait mathématique: 6813 is the smallest number whose 6^{th} power has 24 digits.
Culture générale: 6813 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: August 26th is the day in 1789 that the Declaration of the Rights of Man and of the Citizen is approved by the National Constituent Assembly of France.