general_fact: 28448 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 28448 is an unremarkable number.
trivia: 28448 is a boring number.
historical_date: November 19th is the day in 1095 that the Council of Clermont, called by Pope Urban II to discuss sending the First Crusade to the Holy Land, begins.