general_fact: 13887 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 13887 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 13887 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: January 7th is the day in 1927 that the first transatlantic telephone service is established – from New York, New York to London, England, United Kingdom.