general_fact: 47360 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 47360 is an unremarkable number.
trivia: 47360 is a boring number.
historical_date: August 31st is the day in 1803 that Lewis and Clark start their expedition to the west by leaving Pittsburgh, Pennsylvania at 11 in the morning.