Technological and Environmental Transformations to 600 BCE
What Is a Civilization Anyway?
Culture Evolves Slowly But Falls Apart Quickly
Stone Tools Demand New American Story
The Worst Mistake in the History of the Human Race
Llama Poop Helped Inca Thrive–Corn Trumps Potatoes in Andes
David Christian’s “Big History” Lecture Video
People Grew Shorter Growing Crops
Which Came First? Agriculture OR Religion? Gobekli Tepe