Archaeologists have long known that complex societies can rise, flourish and then disappear so completely that only scattered ruins hint at what was lost. Now a new wave of research is sharpening the ...

Introduction : our cultural Amnesia -- Adena, first civilizers of North America -- Who were the Adena? -- The keltic fingerprint on prehistoric America -- Hopewell masters of ceremony -- Who were the ...

Add Yahoo as a preferred source to see more of our stories on Google. One of history's biggest questions is: "How does an entire civilization disappear?" One can comprehend how an object or even a ...

According to ancient Greek texts, this was a land of eternal spring, inhabited by a race of giants who lived for a thousand years without disease or war. They called it Hyperborea, a realm existing ...