megaflood

An illustration of North America's first city, Cahokia.

6 May, 2015 - 13:03 lizleafloor

The Rise and Fall of Cahokia: Did Megafloods Spell the End of the Ancient Metropolis?

The mysterious demise of the ancient city of Cahokia has long remained unexplained, but now research suggests catastrophic megafloods may have devastated crops and food stores, and forced residents...