general_fact: 2185 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 2185 is the number of digits of 5^{5^{5}}.
trivia: 2185 is a boring number.
historical_date: December 24th is the day in 1818 that the first performance of "Silent Night" takes place in the church of St. Nikolaus in Oberndorf, Austria.