Fait général: 1512 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1512 is the number of inequivalent Ferrers graphs with 27 points.
Culture générale: 1512 is an unremarkable number.
Date historique: February 20th is the day in 1877 that Tchaikovsky's ballet Swan Lake receives its première performance at the Bolshoi Theatre in Moscow.