Marajoara culture flourishes at the mouth of the Amazon
The Marajoara culture was a pre-Columbian era society that flourished at the mouth of the Amazon River likely between 800 C.E. and 1400 C.E.
Brazil
Humans of ancient Brazil independently invent pottery
The earliest pottery ever found in the Western Hemisphere, radiocarbon-dated 8,000 years old, has been excavated in the Amazon basin of Brazil, near Santarém, providing evidence to overturn the assumption that the tropical forest region was too poor in resources to have supported a complex prehistoric culture.
The Eldoradense culture emerges in modern-day Paraguay, Brazil, and Argentina, near Iguazú Falls
The area surrounding Iguazu Falls was inhabited 10,000 years ago by the hunter-gatherers of the Eldoradense culture.