general_fact: 84411 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 84411 is an uninteresting number.
trivia: 84411 is an unremarkable number.
historical_date: February 9th is the day in 1895 that William G. Morgan creates a game called Mintonette, which soon comes to be referred to as volleyball.