Fait général: 8211 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 8211 is a boring number.
Culture générale: 8211 is a boring number.
Date historique: June 24th is the day in 1932 that a bloodless Revolution instigated by the People's Party ends the absolute power of King Prajadhipok of Siam (now Thailand).