Poetry is a form of literature that usesaesthetic and rhythmic qualities oflanguage—such as phonaesthetics,sound symbolism, and metre—to evoke meanings in addition to, or in place of, the prosaic ostensible meaning.
Poetry has a long history, dating back to the Sumerian Epic of Gilgamesh. Early poems evolved from folk songs such as the Chinese Shijing, or from a need to retell oral epics, as with the SanskritVedas, Zoroastrian Gathas, and theHomeric epics, the Iliad and theOdyssey. Ancient attempts to define poetry, such as Aristotle‘s Poetics, focused on the uses of speech inrhetoric, drama, song and comedy. Later attempts concentrated on features such as repetition, verse form and rhyme, and emphasized the aesthetics which distinguish poetry from more objectively informative, prosaic forms of writing. From the mid-20th century, poetry has sometimes been more generally regarded as a fundamental creative act employing language.
Poetry uses forms and conventions to suggest differential interpretation to words, or to evoke emotive responses. Devices such as assonance, alliteration,onomatopoeia and rhythm are sometimes used to achieve musical orincantatory effects. The use ofambiguity, symbolism, irony and otherstylistic elements of poetic diction often leaves a poem open to multiple interpretations. Similarly figures of speech such as metaphor, simile andmetonymy create a resonance between otherwise disparate images—a layering of meanings, forming connections previously not perceived. Kindred forms of resonance may exist, between individual verses, in their patterns of rhyme or rhythm.