general_fact: 49752 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 49752 is an uninteresting number.
trivia: 49752 is a boring number.
historical_date: March 19th is the day in 1649 that the House of Commons of England passes an act abolishing the House of Lords, declaring it "useless and dangerous to the people of England".