general_fact: 1929 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 1929 is an unremarkable number.
trivia: 1929 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: April 12th is the day in 1934 that the strongest surface wind gust in the world at 231 mph, is measured on the summit of Mount Washington, New Hampshire.