The Book of the Ocean, by Ernest Ingersoll, Part 4

Let's sail to sleep with more about the history of maritime exploration, including Vikings in North America, the Chinese invention of the compass, Arabic navigation tools, and the rise of the Portuguese. Dreams ahoy!   Help us stay ad-free and 100% listener supported! Patreon: https://www.patreon.com/boringbookspod Buy Me a Coffee: https://www.buymeacoffee.com/d5kcMsW   Read "The Book of the Ocean" at Project Gutenberg: https://www.gutenberg.org/ebooks/56311   Music: "Ocean Tapping," by PC III, licensed under CC BY   If you'd like to suggest a copyright-free reading for soft-spoken relaxation to help you overcome insomnia, anxiety and other sleep issues, connect on our website, http://www.boringbookspod.com.