general_fact: 49800 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 49800 is an unremarkable number.
trivia: 49800 is an unremarkable number.
historical_date: May 6th is the day in 1882 that Thomas Henry Burke and Lord Frederick Cavendish are stabbed and killed during the Phoenix Park Murders in Dublin.