How did people invent glass?

Have you ever looked out a window, swiped on a tablet screen, or taken a sip from a clear cup and wondered... what is glass actually made of? Get ready for a mind-blowing historical adventure, because the answer is melted dirt! Join Mira and Finn as they uncover the incredible, accidental, and sometimes dangerous history of glass! Travel back 5,000 years to Ancient Mesopotamia and Egypt, where metalworkers accidentally turned glowing campfire sand into beautiful, jewel-like beads. Then, fast forward to the Roman Empire to discover the amazing bubble-blowing trick called glassblowing that gave the world its very first windows! But wait, the story gets even crazier! Did you know that in the 1300s, the recipe for clear glass was a top-secret government mystery? We'll travel to a luxurious prison island in Venice where real-life assassins hunted down anyone who tried to share the secret of glassmaking! Finally, learn how a brilliant inventor named Michael Owens created a giant metal monster to make cheap glass cups for everyone, and how today, we use gigantic glass mirrors to take pictures of distant galaxies! Hit play to explore how ordinary sand became the most useful invisible material on Earth!