Leonardo da Vinci and the Bone That Brought Down Galen

For more than a thousand years, medicine learned the human body from Galen, a Roman doctor who never dissected a human. Leonardo da Vinci drew the truth in secret notebooks. Andreas Vesalius cut the bodies himself and proved the books wrong — starting with the jaw. Then came grave robbers, Burke and Hare, a new law, and the textbook every doctor and dentist knows: Gray's Anatomy. And a twist about your own jaw at birth.

Every Then vs Now episode ends with what a surgeon would do today.