In ancient Rome, Juno was the goddess who watched over women and marriage. Together with Vesta, the protector of virginity, these two mighty goddesses were sacred to Roman women.
Although Juno's festival, the Matronalia, was actually celebrated in March, the month of June was named for her. It's a month for weddings and handfasting, so one could easily honor Juno at this time of the summer solstice. During the Matronalia, women received gifts from their husbands and daughters, and gave their female slaves the day off work.