The Twelve Labors were a series of tasks that the hero Heracles, also known as Hercules, was required to complete as a penance. These labors were assigned to him by King Eurystheus and were meant to be nearly impossible. Each labor tested Heracles' strength, courage, and cleverness, showcasing his heroic qualities. The tasks included slaying the Nemean Lion, capturing the Golden Hind of Artemis, and retrieving the Ceryneian Hind. Other labors involved capturing the Erymanthian Boar and cleaning the Augean Stables. Ultimately, these labors solidified Heracles' status as one of the greatest heroes in Greek mythology.