general_fact: 955 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 955 is the number of ways to to arrange the numbers 1-9 around a circle so that the sums of adjacent numbers are distinct.
trivia: 955 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: August 12th is the day in 1985 that Japan Airlines Flight 123 crashes into Osutaka ridge in Gunma Prefecture, Japan, killing 520, to become the worst single-plane air disaster.