Hesiod’s Theogony mentions Pandora before the fuller jar story in Works and Days.
Theogony is a poem about the origins and genealogy of the Greek gods. Near its account of the conflict over fire and sacrifice, it refers to the creation of woman and to Pandora. The passage is brief compared with the narrative developed in Works and Days, but it is important evidence for the myth’s early literary form.
Works and Days expands the episode by describing Pandora’s gifts, her connection with Epimetheus, the opening of the vessel, and the presence of hope. The two poems are therefore complementary sources rather than identical versions. They reflect related mythic material shaped for different poetic purposes.
Theogony is not the same work as Homer’s Iliad or Odyssey, and it is not a later Roman retelling such as Ovid’s Metamorphoses. Its focus on divine origins makes the Pandora reference part of a wider genealogy and account of cosmic order.