Erasmus helped popularize the expression “Pandora’s box” by translating Hesiod’s vessel as a box.
Hesiod’s Greek word is pithos, a large storage jar or container, not a small box. In a sixteenth-century Latin rendering, the humanist scholar Desiderius Erasmus used pyxis, a word meaning box or chest. That choice influenced the form of the myth that became familiar in many European languages.
The modern phrase therefore reflects a translation history as well as the ancient story. Readers often assume that “box” is Hesiod’s original object, but the earliest surviving account describes a substantial jar. Artistic and literary retellings later reinforced the compact box image.
The expression now means an action or subject that releases many unexpected problems. Its figurative use preserves the myth’s basic sequence: a sealed container is opened, troubles escape, and hope remains behind.