One of Heracles' labors, performed in service to King Eurystheus, was to clean the stables of King Augeas of Elis. King Augeas had not cleaned his stalls for some years and the filth and stench had become unbearable. Heracles agreed to the task and succeeded in diverting the course of two rivers to achieve his aim. The term Augean Stables has since become a byword for squalor. Augean describes anything that is extremely filthy or squalid.