In Greek mythology, which poem by Hesiod tells the story of Pandora and her jar?

Hesiod’s Works and Days tells the Greek myth of Pandora and the jar that released suffering into the world.

Works and Days is a didactic poem traditionally attributed to Hesiod, an archaic Greek poet usually dated to the late eighth or early seventh century BCE. It combines advice about farming, justice, labor, seasonal timing, and proper conduct with several myths.

The Pandora episode appears while Hesiod explains why human life includes toil and hardship. Zeus arranges for Pandora to be created as part of a punishment connected with Prometheus, who had helped humanity obtain fire. Pandora later opens the sealed storage jar, releasing troubles among humans.

Hesiod also mentions Pandora in the Theogony, but the fuller narrative of her creation and the jar appears in Works and Days. The two poems are related sources, not different names for the same work.