math_fact: 47516 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 47516 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: February 3rd is the day in 1966 that the unmanned Soviet Luna 9 spacecraft makes the first controlled rocket-assisted landing on the Moon.