Lost civilizations
10. Nabta Playa
From 7000 and 6500 BCE, an incredible urban community arose in what is today the Egyptian Sahara. The people who lived there domesticated cattle, farmed, created elaborate ceramics, and left behind stone circles that offer evidence that their civilization included astronomers as well.Archaeologists believe the peoples of Nabta Playa were likely the precursor civilization for the great Nile cities that arose in Egypt thousands of years later. Though the Nabta civilization is today located in an arid region, it arose at a time when monsoon patterns had shifted, filling the playa with a lake and making it possible for a large culture to bloom.
10 Civilizations that Disappeared Under Mysterious Circumstances in io9.
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