Some months ago I posted a blog on the role of geography in history, in which I discussed the Continental Axes argument of Jared Diamond. I found it a highly productive idea – literally so, because it prompted us to collect data to test empirically a particular extension of the argument. But, as I said […]
July 10, 2012 by Peter Turchin
While classical Greece and Rome produced excellent heavy infantry (hoplites), their cavalry was really pathetic. Yes, some of them (usually, the wealthy) rode horses. Among the Romans the upper class was even called ‘knights’ – equites, from equus, the Latin word for horse, but these ‘knights’ served mostly as officers and perhaps messengers. They never […]
May 24, 2012 by Peter Turchin
The central question of social evolution is how we can understand the rise of complex societies with extensive cooperation among millions (and more) of people. In less technical terms, what are the origins of civilizations and empires? I couldn’t help but think about this question during my visit to the Cahokia Mounds. Why was the […]
September 29, 2012 by Peter Turchin
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