math_fact: 5044 is a value of n for which f(n) and s(n) are square.
trivia: 5044 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: October 22nd is the day in 1866 that a plebiscite ratifies the annexion of Veneto and Mantua to Italy, occurred three days before, on October 19.