At 14,000 feet, in the remote jungles of New Guinea is the largest gold and copper deposit in the world. Getting to that deposit and building a profitable mine was one of the biggest engineering challenges ever.

Welcome to Progress -- the home of history's greatest leaps forward. From the seismic invention of the world's first printing press to the great rocket-powered marvels that took us to the stars, we'll be bringing you world-class documentaries celebrating history's greatest inventions and technological breakthroughs.

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Discover the past on History Hit with ad-free exclusive podcasts and documentaries released weekly presented by world renowned historians Dan Snow, Suzannah Lipscomb, Matt Lewis and more. Get 50% off your first 3 months with code PROGRESS 👉 https://bit.ly/3CbEssK