The Romans are known for their ingenuity: aqueducts, road systems, daily newspapers, cement, sanitation, elements of social care, welfare and our modern legal system all come from them. That’s without even taking into account their military and tactical know-how.

However, I was surprised to find out they may also have created something that seems more adequate in a classroom at Hogwarts, rather than imperial Rome: unbreakable, flexible glass, or vitrum flexile, to say it as they would.