general_fact: 47101 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 47101 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 47101 is a boring number.
historical_date: December 15th is the day in 1905 that the Pushkin House is established in St. Petersburg to preserve the cultural heritage of Alexander Pushkin.