What task involved cleaning a large number of stables?

The task of cleaning a large number of stables is famously associated with the cleansing of the Augean stables. This labor was one of the Twelve Labors of Heracles (Hercules), where he was required to clean the stables of King Augeas in a single day. The stables housed a vast number of cattle, and as a result, they had not been cleaned for many years, accumulating an immense amount of waste.

Heracles accomplished this seemingly impossible task by rerouting two rivers to wash out the filth, demonstrating his ingenuity and strength. This labor not only showcased his physical capabilities but also represented a challenge that required clever problem-solving, which is a significant theme in many of Heracles' tasks.

The other tasks listed, such as capturing the Erymanthian Boar, slaying the Nemean Lion, and obtaining the Golden Apples, are notable feats attributed to Heracles, but they do not involve the specific challenge of cleaning the stables.