general_fact: 42164 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 42164 is an unremarkable number.
trivia: 42164 is a boring number.
historical_date: June 10th is the day in 1935 that Dr. Robert Smith takes his last drink, and Alcoholics Anonymous is founded in Akron, Ohio, United States, by him and Bill Wilson.