general_fact: 933 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 933 is an uninteresting number.
trivia: 933 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: July 21st is the day in 1925 that Sir Malcolm Campbell becomes the first man to break the 150 mph (241 km/h) land barrier at Pendine Sands in Wales.