History and the Odyssey

The Odyssey is coming out soon, a feature film starring Matt Damon, and directed and written by Christopher Nolan. Various online pundits have already criticised it, focusing on historical authenticity — faithfulness to some preconceived idea of how the world in the film ought to look. Why isn’t Odysseus’ armour consistent with Bronze Age armour? Why does his ship look like a viking longship?