The Metamorphoses (Latin: Metamorphōsēs, from Ancient Greek μεταμορφώσεις [metamorphṓseis], lit. 'Transformations') is a Latin narrative poem from 8 CE by the Roman poet Ovid. It is considered his magnum opus. The poem chronicles the history of the world from its creation to the deification of Julius Caesar in a mythico-historical framework comprising over 250 myths, 15 books, and 11,995 lines.
Although it meets some of the criteria for an epic, the poem defies simple genre classification because of its varying themes and tones. Ovid took inspiration from the genre of metamorphosis poetry. Although some of the Metamorphoses derives from earlier treatment of the same myths, Ovid diverged significantly from all of his models.