general_fact: 50811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 50811 is an uninteresting number.
trivia: 50811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
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.