general_fact: 16705 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 16705 is a boring number.
trivia: 16705 is an unremarkable number.
historical_date: September 25th is the day in 1690 that Publick Occurrences Both Foreign and Domestick, the first newspaper to appear in the Americas, is published for the first and only time.