Hecho matemático: 6251 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 6251 is an uninteresting number.
Fecha histórica: February 10th is the day in 1798 that Louis Alexandre Berthier invades Rome, proclaims a Roman Republic on February 15 and then on February 20 takes Pope Pius VI prisoner.