Harappa was one of the large cities created by the Indus Valley civilization. Smn121 via Wikimedia Commons under CC BY-SA 3.0 What happened to the Indus Valley civilization? The culture, also known as ...

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 ...