This is a sacred day to the Roman god Quirinus one of the triad of state gods along with Jupiter and Mars. His rituals, and those of his consort Hora, were performed on the Quirinal hill. The myrtle was sacred to him. His worship was established by the Sabines before the founding of Rome and was later absorbed by the Roman state. It is also interesting to note that since the times of the early Roman kings Romulus was considered an aspect of Quirinus.