general_fact: 5529 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 5529 is an unremarkable number.
trivia: 5529 is an unremarkable number.
historical_date: February 19th is the day in 1859 that Daniel E. Sickles, a New York Congressman, is acquitted of murder on grounds of temporary insanity.