general_fact: 13922 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 13922 is an unremarkable number.
trivia: 13922 is a boring number.
historical_date: February 11th is the day in 1959 that the Federation of Arab Emirates of the South, which will later become South Yemen, is created as a protectorate of the United Kingdom.