math_fact: 85370 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 85370 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: September 25th is the day in 1929 that Jimmy Doolittle performs the first blind flight from Mitchel Field proving that full instrument flying from take off to landing is possible.