Fatto matematico: 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 a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 31st is the day in 1999 that the United States Government hands control of the Panama Canal (as well all the adjacent land to the canal known as the Panama Canal Zone) to Panama.