math_fact: 19697 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 19697 is a boring number.
historical_date: December 4th is the day in 2006 that an adult giant squid is caught on video for the first time by Tsunemi Kubodera near the Ogasawara Islands, 1,000 km (620 mi) south of Tokyo.