general_fact: 1223 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 1223 is the smallest number with complexity 24.
trivia: 1223 is a boring number.
historical_date: May 7th is the day in 1846 that the Cambridge Chronicle, America's oldest surviving weekly newspaper, is published for the first time in Cambridge, Massachusetts.