math_fact: 13722 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 13722 is an unremarkable number.
historical_date: July 26th is the day in 1533 that Atahualpa, the 13th and last emperor of the Incas, dies by strangulation at the hands of Francisco Pizarro's Spanish conquistadors.