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language:en;Learn more about our student voice program;TED-Ed Clubs: http://bit.ly/2J5g4eS View full lesson: https://ed.ted.com/lessons/how-the-world-s-first-subway-system-was-built-christian-wolmar It was the dawn of 1863;and London's not-yet-opened subway system — the first of its kind in the world — had the city in an uproar. Most people thought the project;which cost more than 100 million dollars in today's money;would never work. So how did they do it? Christian Wolmar explains how the London Underground was built at a time when no one had built a railway under a city before. Lesson by Christian Wolmar;animation by TED-Ed. Thank you so much to our patrons for your support! Without you this video would not be possible! Kyanta Yap;Shawar Khan;Elizabeth Cruz;Rohan Gupta;Sarah Lundegaard;Michael Braun-Boghos;Yujing Jiang;Aubrie Groesbeck;Kathryn J Hammond;sammie goh;Delene McCoy;Mayank Kaul;Ruth Fang;Scott Gass;Mary Sawyer;Jason A Saslow;Joanne Luce;Rishi Pasham;Bruno Pinho;and Javier Aldavaz.;Education;TED-Ed;TED;TEDEd;TED Ed;TED Education;History;Architectural History;Architecture;Engineering;London Underground;London Tube;British History;Trains;subways;Christian Wolmar;Biljana Labovic;Animation