The Divalia was a Roman festival held on December 21st, in honour of the goddess Angerona

Angerona

In Roman mythology, Angerona or Angeronia was an old Roman goddess, whose name and functions are variously explained. She is sometimes identified with the goddess Feronia....

, whence it is also called Angeronalia. On the day of this festival the pontifices performed sacrifices in the temple of Voluptia, or the goddess of joy and pleasure, who, some say, was the same with Angerona, and supposed to drive away all the sorrow and chagrin of life.