general_fact: 585 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 585 is a palindrome in base 2, base 8, and in base 10.
trivia: 585 is a boring number.
historical_date: August 7th is the day in 1974 that Philippe Petit performs a high wire act between the twin towers of the World Trade Center 1,368 feet (417 m) in the air.