Fait mathématique: 6257 is the number of essentially different ways to dissect a 20-gon into 9 quadrilaterals.
Culture générale: 6257 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: February 16th is the day in 1957 that the "Toddlers' Truce", a controversial television close down between 6.00 pm and 7.00 pm is abolished in the United Kingdom.