general_fact: 40845 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 40845 is an unremarkable number.
trivia: 40845 is a boring number.
historical_date: October 30th is the day in 1918 that the Ottoman Empire signs an armistice with the Allies, ending the First World War in the Middle East.