Naming of moons underworld, and Nix (a respelling of Nyx), mother of Charon, is the goddess of darkness and the night. Kerberos is a giant three-headed dog who guards the entrance to the underworld. The fifth moon is named for the river Styx that forms the boundary between the worlds of the living and the dead. The name of Eris's moon Dysnomia was suggested by its discoverer Michael E. Brown, who also suggested the name of the dwarf planet. The name has two meanings: in mythology Dysnomia (lawlessness) is the daughter of Eris (chaos). However, the name is also an intentional reference to
Rebellion of the Three Guards restoration of the Shang dynasty. Nevertheless, such uprisings remained local and weak, so that Shang loyalism never again posed a serious threat to the Zhou dynasty. As the Duke of Zhou was later "revered as paragon of wisdom and humility" and respected as "great example" by Confucius, the revolt against his regency was consequently vilified. The Three Guards were considered as "evil men of old", over whom Duke Dan's virtue had triumphed. This interpretation dominated moralistic renditions of the civil war for centuries. Despite the generally negative view towards the rebels, there have been scholars who attempted a reassessment of