general_fact: 16804 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 16804 is an uninteresting number.
trivia: 16804 is a boring number.
historical_date: January 2nd is the day in 1927 that Angered by the anti-clerical provisions of the Mexican Constitution of 1917, Catholic rebels in Mexico rebelled against the government.