Homer is the author of the Iliad and the Odyssey, and is revered as the greatest ancient Greek epic poet. These epics lie at the beginning of the Western canon of literature, and have had an enormous influence on the history of literature.
When he lived is controversial. Herodotus estimates that Homer lived 400 years before Herodotus' own time, which would place him at around 850 BC, while other ancient sources claim that he lived much nearer to the supposed time of the Trojan War, in the early 12th century BC.
The formative influence played by the Homeric epics in shaping Greek culture was widely recognized, and Homer was described as the teacher of Greece. Homer's works, which are about fifty percent speeches, provided models in persuasive speaking and writing that were emulated throughout the ancient and medieval Greek worlds. Fragments of Homer account for nearly half of all identifiable Greek literary papyrus finds.