In addition to the more well-known holiday, today is, according to the Book of Days, “nut-crack night” (also known as the “oracle of the nuts”):

A lad and lass each place a nut in the fire; the course of their courtship is predicted by the behavior of the nuts, whether they burn quiety together or jump apart.

This evening also apparently offers the opportunity for divination by cabbage-pulling.

I love holidays.