general_fact: 9546 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 9546 is an unremarkable number.
trivia: 9546 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: February 18th is the day in 1930 that Elm Farm Ollie becomes the first cow to fly in a fixed-wing aircraft and also the first cow to be milked in an aircraft.