general_fact: 19174 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 19174 is a boring number.
trivia: 19174 is an uninteresting number.
historical_date: June 29th is the day in 1888 that George Edward Gouraud records Handel's Israel in Egypt onto a phonograph cylinder, thought for many years to be the oldest known recording of music.