math_fact: 47057 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 47057 is an unremarkable number.
historical_date: November 1st is the day in 1348 that the anti-royalist Union of Valencia attacks the Jews of Murviedro on the pretext that they are serfs of the King of Valencia and thus "royalists.