From agriculture to the X-ray machine, hosts Robert Lamb and Joe McCormick explore the inventions we created, and how they created us.

Walls

February 25, 201945 min
Walls area very old invention, but where did they first divide the tribes of humanity? To what extent were they successful? What can we learn about the modern world from discussions of ancient walls? Robert Lamb and Joe McCormick explore it all in this episode of Invention.  Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers