general_fact: 15694 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 15694 is a boring number.
trivia: 15694 is an unremarkable number.
historical_date: December 19th is the day in 1776 that Thomas Paine publishes one of a series of pamphlets in the Pennsylvania Journal titled The American Crisis.