general_fact: 42793 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 42793 is a boring number.
trivia: 42793 is an unremarkable number.
historical_date: February 28th is the day in 1885 that the American Telephone and Telegraph Company is incorporated in New York State as the subsidiary of American Bell Telephone.