general_fact: 91464 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 91464 is an unremarkable number.
trivia: 91464 is an uninteresting number.
historical_date: June 2nd is the day in 1967 that Luis Monge is executed in Colorado's gas chamber, in the last pre-Furman execution in the United States.