general_fact: 452 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 452 is the closest integer to 7^{p}.
trivia: 452 is a boring number.
historical_date: March 27th is the day in 1871 that the first international rugby football match, England v. Scotland, is played in Edinburgh at Raeburn Place.