Pre-Columbian Amazon civilization peaked at 1.2–4 million around 100–300 AD, thriving ~1,500 years. They grew maize, squash, sweet potatoes, and chili peppers, managing Brazil nut and palm groves. The culture vanished ~850 AD — nearly 1,000 years before Europeans arrived. Population density rivals or exceeds all of late medieval Germany!
Amazon civilization peaked at 1.2–4 million people around 100–300 AD before vanishing
Key facts
- Based on labor required to construct and maintain the earthworks, researchers estimate the civilization's peak population was between 1.2 and 3 million people, with some recalculations pushing the figure to 3.8 to 4 million
- Population peak occurred approximately 100 to 300 AD
- The civilization thrived in the rainforest for close to 1,500 years
- Inhabitants cultivated maize, squash, sweet potatoes, and chili peppers, and planted Brazil nut and palm tree groves
- The civilization disappeared around 850 AD, nearly 1,000 years before Europeans arrived in Amazonia
- Population density comparisons suggest more people lived in this Amazon region than in all of Germany during the late medieval period
Sources
Ancient Amazon earthwork findings spotlight Indigenous ...news.mongabay.com
“Our findings clearly suggest that the Amazon had sizable human populations, perhaps totalling 8-10 million people. This number is at the ...
Mysterious Shapes Hidden Beneath the Amazon Canopy ...smithsonianmag.com
During the time, scientists estimate between 1.25 million to 3 million people inhabited more than 70,600. They found nearly 400 previously ...
Over 20000 precolonial earthworks in the Southwest ...nature.com
by M Pärssinen · 2026 · Cited by 2 — Hence, the original population estimate was 60,000 people, with a maximum density of up to 1.5 people per square kilometre. Instead of 200 ...
LiDAR reveals hidden Amazon earthworks from lost ...archaeologymag.com
the team calculated a peak population of between 1.25 million and 3 million people from CE 100 to 300. Earlier estimates
Amazonian Earthworksgea.mpg.de
The new study combines cutting-edge remote sensing technology with archaeological data and advanced statistical modeling to estimate how many ...
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