math_fact: 19211 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 19211 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: August 5th is the day in 2003 that a car bomb explodes in the Indonesian capital of Jakarta outside the Marriott Hotel killing 12 and injuring 150.