Fait général: 1825 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1825 is the smallest number whose square begins with three 3's.
Culture générale: 1825 is an unremarkable number.
Date historique: December 29th is the day in 1914 that a Portrait of the Artist as a Young Man, the first novel by James Joyce, is serialised in The Egoist.