The Roman Goddess Concordia is honored and feasted on many different days throughout the year. She is the Goddess of Harmony and Good Relations, and her presence at any grand festival was likely required.
According to some calendars, January 16 is listed as the Festival of Concordia. I could not find much more about this particular day. I would assume that any festival involving this Goddess would or could include the following:
- Olive branches
- Coming together to work out differences
- Harmony – maybe even singing in harmony
- Sufi dances of Universal Peace might also be appropriate