general_fact: 4444 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 4444 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 4444 is a boring number.
historical_date: March 1st is the day in 1966 that Venera 3 Soviet space probe crashes on Venus becoming the first spacecraft to land on another planet's surface.