general_fact: 63949 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 63949 is an uninteresting number.
trivia: 63949 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: January 31st is the day in 1996 that an explosives-filled truck rams into the gates of the Central Bank of Sri Lanka in Colombo, Sri Lanka killing at least 86 and injuring 1,400.