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 Dongyi and Huaiyi. As result, the Rebellion of the Three Guards began the military conflict between the Zhou dynasty and the independent tribes and states of the East, which would last until the fall of the Western Zhou in 771 BC. The Duke of Zhou also recognized that the kingdom was too large to be ruled from the western court at Fenghao, so that he decided that "the construction of an eastern administrative center seemed inevitable if [the Zhou kings] were to maintain their rule in the east". The second capital (Chengzhou/Wangcheng) was located near Luoyang, though it is still