general_fact: 48923 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 48923 is a boring number.
trivia: 48923 is an unremarkable number.
historical_date: December 11th is the day in 1282 that Llywelyn the Last, the last native Prince of Wales, is killed at Cilmeri, near Builth Wells, south Wales.