Anxieties in western culture about poetry being fiction or untruth dates back to ancient Greek philosophy, most notably Plato’s The Republic and Ion. In the latter, Socrates interrogates Ion, a rhapsode or performer of Homeric poems, and proves that a poet must indeed resort to falsehood to be able to give such elaborate descriptions of different professions, such as medicine, fishing and making war. And, in The Republic, Plato banishes some of the best-known names of ancient Greek literature — Aeschylus, Sophocles, Euripides, Aristophanes, and Homer. Not because they were poets, as is commonly presumed, but because they produced the wrong sort of poetry, filled with fiction.