The 400,000,000-Year Link Between Scotland and Canada

2015-03-23

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http://tomscott.com - http://twitter.com/tomscott - Back in the Caledonian orogeny, 400 million years ago, two bits of the Earth's crust began to collide. The result, a long time later, was the Central Pangaean Mountains: and now, you can find their remnants all over the globe.