general_fact: 63713 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 63713 is an unremarkable number.
trivia: 63713 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: June 9th is the day in 1978 that the Church of Jesus Christ of Latter-day Saints opens its priesthood to "all worthy men", ending a 148-year-old policy excluding black men.