general_fact: 19403 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 19403 is a boring number.
trivia: 19403 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: February 13th is the day in 1960 that Black college students stage the first of the Nashville sit-ins at three lunch counters in Nashville, Tennessee.