general_fact: 8880 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 8880 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 8880 is an uninteresting number.
historical_date: April 23rd is the day in 1990 that Namibia becomes the 160th member of the United Nations and the 50th member of the Commonwealth of Nations.