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Historian Eric Cline, author of 1177 BC, explains how the collapse of several civilizations circa 1200 BC was the result of an “overly interdependent system that had no way to absorb multiple shocks a

This is incredible: Google Has a Secret Reference Desk. Here’s How to Use It. I knew some of these but not all, e.g. verbatim mode “returns results for exactly what you typed, stripped of personaliza