general_fact: 1399 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 1399 is the number of subsets of {1,2,3,...,13} that have an integer average.
trivia: 1399 is a boring number.
historical_date: October 30th is the day in 1980 that El Salvador and Honduras sign a peace treaty to put the border dispute fought over in 1969's Football War before the International Court of Justice.