Welcome to the Kingdom of the Inca, where hundreds of rope bridges connect an imperial highway system and fiber-armored soldiers wield woven slings against the enemies of the Emperor. In this episode of Stuff to Blow Your Mind, Robert Lamb and Joe McCormick explore the khipu system of knotted, colored string that served as a physical notation system in lieu of written language. (Originally published March 8, 2016)
Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htm
And to learn about your ad choices when listening to podcasts, visit
https://www.howstuffworks.com/privacy.htm#ad-choices
