math_fact: 70830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 70830 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: December 3rd is the day in 1982 that a soil sample is taken from Times Beach, Missouri that will be found to contain 300 times the safe level of dioxin.