Add Yahoo as a preferred source to see more of our stories on Google. When we look back at ancient history, we often default to picturing primitive societies with crude tools, simple living, and slow ...

At its peak, the ancient Indus River Valley civilization featured gridded streets, multistory brick homes, flush toilets and bustling shops. Its people traded gold, precious stones and items such as ...

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 ...

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 ...