Fait général: 21544 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 21544 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 21544 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: December 25th is the day in 1974 that Marshall Fields drives a vehicle through the gates of the White House, resulting in a four-hour standoff.