11.30.2018 - By iHeartPodcasts
The Inca never developed a system of writing, but they kept records and told stories through intricate knotwork. Learn what researchers know -- and what they're still looking to find out -- about Inca khipu in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.