general_fact: 91297 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 91297 is an unremarkable number.
trivia: 91297 is a boring number.
historical_date: December 17th is the day in 1967 that Prime Minister of Australia Harold Holt disappears while swimming near Portsea, Victoria and is presumed drowned.