general_fact: 9487 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 9487 is a boring number.
trivia: 9487 is an unremarkable number.
historical_date: December 21st is the day in 1826 that American settlers in Nacogdoches, Mexican Texas, declare their independence, starting the Fredonian Rebellion.