Bulla, an amulet and worn like a locket, was given to children, at the time of birth, in Ancient Rome. A bulla was worn around the neck as amulet to protect against evil spirits and forces. A bulla was made of differing substances depending upon the wealth of the family. A common substance was leather, but the richer families would have bullae of gold or silver, and poorer families' would be made of cotton.
A girl child continued to wear her bulla until the eve of her marriage, when it was removed and kept along with her childhood toys and other things. A boy used to wear a bulla until he became a Roman citizen. His bulla was carefully saved, and on some special occasions, like his becoming a general and commanding a parade, the bulla was taken out. He would wear the bulla during the ceremony to safeguard against evil forces like jealousy of men.