general_fact: 6179 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 6179 is a value of n for which 4n and 5n together use each digit exactly once.
trivia: 6179 is a boring number.
historical_date: November 30th is the day in 1953 that Edward Mutesa II, the kabaka (king) of Buganda is deposed and exiled to London by Sir Andrew Cohen, Governor of Uganda.