general_fact: 52108 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 52108 is an unremarkable number.
trivia: 52108 is a boring number.
historical_date: August 31st is the day in 1997 that Diana, Princess of Wales, her companion Dodi Al-Fayed and driver Henri Paul die in a car crash in Paris.