general_fact: 28737 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 28737 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 28737 is a boring number.
historical_date: September 4th is the day in 1951 that the first live transcontinental television broadcast takes place in San Francisco, California, from the Japanese Peace Treaty Conference.