math_fact: 46517 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 46517 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: May 11th is the day in 1812 that Prime Minister Spencer Perceval is assassinated by John Bellingham in the lobby of the House of Commons, London.