general_fact: 47308 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 47308 is an unremarkable number.
trivia: 47308 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: July 10th is the day in 1966 that the Chicago Freedom Movement, led by Martin Luther King, Jr., holds a rally at Soldier Field in Chicago, Illinois.