Fait général: 1811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 1811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: December 15th is the day in 2005 that Latvia amends its constitution to eliminate possibility of same-sex couples being entitled to marry.