Fait général: 6559 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 6559 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 6559 is an uninteresting number.
Date historique: December 15th is the day in 1256 that Hulagu Khan captures and destroys the Hashshashin stronghold at Alamut in present-day Iran as part of the Mongol offensive on Islamic southwest Asia.