Eris was the Greek goddess of discord, who was not invited to the "Feast of the Gods" thrown by Zeus and Hera on Mt Olympus. Of course she found a way to ruin the party for others anyway, by rolling the Golden Apple of envy into the place with the inscription, Kallisti, which means "For the fairest."
A competition ensued which led the goddesses to compete for the apple, [Read more...] about Eris