general_fact: 246 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 246 is _{9}C_{2} + _{9}C_{4} + _{9}C_{6}.
trivia: 246 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: September 2nd is the day in 1957 that President Ngo Dinh Diem of South Vietnam becomes the first foreign head of state to make a state visit to Australia.