Fait général: 1534 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1534 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 1534 is an uninteresting number.
Date historique: March 13th is the day in 1997 that the Phoenix lights are seen over Phoenix, Arizona by hundreds of people, and by millions on television.