general_fact: 48100 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 48100 is an unremarkable number.
trivia: 48100 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: September 10th is the day in 1419 that John the Fearless, Duke of Burgundy is assassinated by adherents of the Dauphin, the future Charles VII of France.