Fait général: 15544 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 15544 is an unremarkable number.
Culture générale: 15544 is an unremarkable number.
Date historique: July 22nd is the day in 1944 that the Polish Committee of National Liberation publishes its manifesto, starting the period of Communist rule in Poland.