math_fact: 380 is the number of necklaces possible with 13 beads, each being one of 2 colors.
trivia: 380 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 1933 that the controversial Bodyline cricket tactics used by Douglas Jardine's England peaks when Australian captain Bill Woodfull was hit in the heart.