general_fact: 2192 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 2192 is the number of necklaces (that can't be turned over) possible with 15 beads, each being one of 2 colors.
trivia: 2192 is an uninteresting number.
historical_date: December 31st is the day in 1229 that James I of Aragon the Conqueror enters Medina Mayurqa (now known as Palma, Spain) thus consummating the Christian reconquest of the island of Majorca.