math_fact: 13311 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
trivia: 13311 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: June 10th is the day in 1977 that James Earl Ray escapes from Brushy Mountain State Prison in Petros, Tennessee, but is recaptured on June 13.