general_fact: 8173 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 8173 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 8173 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: May 17th is the day in 1974 that Police in Los Angeles, California, raid the Symbionese Liberation Army's headquarters, killing six members, including Camilla Hall.