general_fact: 47499 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 47499 is a boring number.
trivia: 47499 is an uninteresting number.
historical_date: January 17th is the day in 395 that Emperor Theodosius I dies in Milan, the Roman Empire is re-divided into an eastern and a western half.