math_fact: 9789 is the smallest number that appears in its factorial 11 times.
trivia: 9789 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: October 19th is the day in 1969 that the first Prime Minister of Tunisia in twelve years, Bahi Ladgham, is appointed by President Habib Bourguiba.