general_fact: 83487 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 83487 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 83487 is a boring number.
historical_date: July 30th is the day in 1502 that Christopher Columbus lands at Guanaja in the Bay Islands off the coast of Honduras during his fourth voyage.