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Khan Academy
Khan Academy: Smith, Marx, and Keynes
Spanning three centuries of history, from the dawn of the industrial age to modern times, three diverse thinkers developed their own landmark theories on commerce, labor, and the global economy. The three economists profiled in this...
Khan Academy
Khan Academy: The Columbian Exchange
The rapid pace of globalization today is a continuation and acceleration of processes that began 500 years ago. This article discusses that not only humans started to travel the world, but also plants, species, bacteria, and viruses....
Khan Academy
Khan Academy: Collective Learning (Part 4)
In the final essay of a four-part series, David Christian explains how advances in communication and transportation accelerated collective learning.
Khan Academy
Khan Academy: Complexity and the Future
Will our descendants enjoy lives that are richer, more fulfilled, healthier, and in general better than those of today? Or will human societies collapse under the strain of depleted resources, brutal conflicts, and environmental damage?...