general_fact: 2307 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 2307 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 2307 is an uninteresting number.
historical_date: April 25th is the day in 1849 that the Governor General of Canada, Lord Elgin, signs the Rebellion Losses Bill, outraging Montreal's English population and triggering the Montreal Riots.