On a unique planet, a unique species takes its first steps: Mankind begins. But it's a world full of danger. Threatened by extinction, we innovate to survive. See more Season 1, Episode 1, "Inventors." Join us as we explain the wildest, weirdest, most shocking moments of all time in History Countdown - https://histv.co/countdown #MankindTheStoryofAllofUs Subscribe for more from Mankind: The Story of All of Us and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Check out exclusive The HISTORY Channel content: History Newsletter - https://histv.co/newsletter Website - https://histv.co/History Facebook - https://histv.co/Facebook TikTok - http://bit.ly/4kZKjXi The HISTORY® Channel, a division of A+E Networks, is the premier destination for historical storytelling. From best-in-class documentary events, to a signature slate of industry leading nonfiction series and premium fact-based scripted programming, The HISTORY® Channel serves as the most trustworthy source of informational entertainment in media. The HISTORY® channel has been named the #1 U.S. TV network in buzz for seven consecutive years by YouGov BrandIndex, and a top favorite TV network by Beta Research Corporation. For a deeper dive, visit history.com or follow @HISTORY on Instagram, Twitter, Facebook, YouTube and TikTok. For additional press materials visit the A+E Networks Press Center at http://press.aenetworks.com.