general_fact: 916 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 916 is a strobogrammatic number.
trivia: 916 is a boring number.
historical_date: July 4th is the day in 1610 that the Battle of Klushino between forces of the Polish–Lithuanian Commonwealth and Russia during the Polish-Muscovite War.