The Number That Was BANNED — The Story of Zero | Why, Dad?

Most people have no idea zero was invented. For most of human history, nobody had it — and when it finally arrived in Europe, an entire city BANNED it. This is the story of the most powerful number you'll ever write — from Babylonian clay tablets, to a 7th-century Indian mathematician, to a frightened medieval Florence that thought zero was a tool of cheaters. By the end you'll understand why every phone, every game, and every video you've ever watched runs on the number nobody wanted. Made for curious kids ages 9-14 and the grown-ups who learn with them. Solid, source-grounded lessons in science, math, history, and civics — short enough to watch over lunch, deep enough to actually teach something. 📚 CHAPTERS 0:00 Intro — A number nobody had 0:15 A shepherd's problem 0:48 Why the Greeks said no 0:59 Babylon's clever workaround 1:55 India invents the real zero 3:01 The long journey west 3:56 Europe bans the number 4:52 Why it runs the world 5:40 What you take away 🎒 ABOUT BACKYARD LIBRARY Backyard Library is a homeschool-friendly history-and-science channel built by a dad of four. Every episode answers one big "Why, Dad?" question with clear visuals, careful sourcing, and no fluff. Great as a standalone watch, even better as a lesson supplement. ▶️ NEXT EPISODE Why is the sky blue — and why does the sunset turn red? (Spoiler: it's the same answer.) New episodes weekly. 🔔 If this episode taught you something, hit SUBSCRIBE so you don't miss the next one. 💬 What other big questions should we tackle? Drop them in the comments — kids and parents both welcome. #StoryOfZero #historyofmath #BackyardLibrary #homeschooling #mathforkids #historyforkids #stem #educationalvideos #WhyDad