Fait général: 1857 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1857 is an unremarkable number.
Culture générale: 1857 is an uninteresting number.
Date historique: January 30th is the day in 1975 that the Monitor National Marine Sanctuary is established as the first United States National Marine Sanctuary.