No one knows for sure. This is the Greeks "Iliad" which tells the story of a Trojan War and its aftermath. To assume that it is 100% historically accurate would be rather foolish, as there are many discrepancies in history. For example, in Homer's tale of Pandarus shooting arrows to descend in wounds on both Menelaus and Paris, this event then never actually occurred according to Herodotus. We don't even know if Achilles was Achilles' real name (because we can't find his birth certificate), but he did have a crazy skill at running fast--so maybe it's true!