general_fact: 28139 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 28139 is an uninteresting number.
trivia: 28139 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
historical_date: January 14th is the day in 2000 that a United Nations tribunal sentences five Bosnian Croats to up to 25 years for the 1993 killing of over 100 Muslims in a Bosnian village.