From Ek-sen-trik-kuh Discordia: The Tales of Shamlicht:
September 13 (37 Bureaucracy): Mass of Planet Eris/Eristotle (ED)/(MH). Even the scientific bureaucracy recognized our Goddess (& the Mythic Prophet Eristotle) by naming Planet X Eris on this date in 2006 CE. As of this writing, they're calling this world a dwarf planet, but we don't mind. We have nothing against dwarves. So celebrate our planet's mass! (And remember, Eris' moon Dysnomia is really Shamlicht.)
The proposal to name Planet X Eris was began by Professor Mu-Chao on 11 August 2005.