1491: The Untold Story of the Americas Before Columbus - Season 1 Episode 6 Science and Technology

Early indigenous people in North America were using the number 0 before any other people, had mapped the planets and stars and had their own calendars and writing methods. We also see how the herbs and plants that they used often are utilized in our modern drugs, as in the Yew tree bears components in Tamoxifen for cancer treatment today and the Willow tree has acetylsalicylic acid for aspirin.