In which poem does Hesiod tell the story of Pandora and the opening of her container?

Hesiod tells the story of Pandora and the opening of her container in Works and Days.

Works and Days is an ancient Greek didactic poem traditionally attributed to Hesiod, who probably lived around the late eighth or early seventh century BCE. The poem combines advice about farming and justice with myths explaining why human life includes toil and suffering.

Pandora appears in the poem as part of Zeus’s punishment of humanity after Prometheus took fire and gave it to mortals. The account describes her creation, the gifts supplied by the gods, and the release of evils from her container.

Hesiod also refers to Pandora in the Theogony, but Works and Days gives the fuller narrative of the container. The poem is consequently the key ancient source for the version most people recognize today.