Which ancient Greek poem contains Hesiod’s main story of Pandora?

Hesiod’s main story of Pandora appears in the ancient Greek poem Works and Days.

Works and Days is a didactic poem traditionally attributed to Hesiod, probably composed in the seventh century BCE. It combines advice about farming, justice, work, seafaring, and proper conduct with several mythic accounts, including the creation of woman and the opening of Pandora’s container.

Hesiod also mentions Pandora in the Theogony, but that work does not provide the same full narrative. The longer account in Works and Days connects Pandora with Zeus’s punishment of humanity after Prometheus took fire for mortals.

Readers sometimes assume Pandora’s story belongs mainly to the Iliad or the Odyssey because those poems are the best-known Greek epics. Neither Homeric epic contains Hesiod’s detailed account. Works and Days is therefore the key ancient literary source for the version usually called Pandora’s box.