general_fact: 4284 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 4284 is a boring number.
trivia: 4284 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: September 23rd is the day in 1905 that Norway and Sweden sign the "Karlstad treaty", peacefully dissolving the Union between the two countries.