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Article: Ancient mound builders get cultured. (complex culture of hunter-gatherers)
- Article from:
- Science News
- Article date:
- September 20, 1997
- Author:
CopyrightCOPYRIGHT 1997 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Clusters of earthen mounds containing evidence of human occupation and activity occur at more than 2 dozen locations in the eastern United States. Archaeologists generally assume that Native Americans inhabited these sites no more than 3,500 years ago.
A new investigation indicates that an oval grouping of 11 mounds in northern Louisiana, known as Watson Brake, took shape around 5,400 years ago as a base camp for the spring and summer activities of hunter-gatherers. If this dating estimate holds up, it will undermine the influential theory that major construction projects and other aspects of complex culture arose only in farming societies that had strict power ...
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Article: Life on Earth may have first emerged 4.4 billion years ...
Xinhua News Agency;
May 21, 2009 ;
660 words
... ... may have first emerged 4.4 billion years ago: study LONDON, May 21 (Xinhua ... Earth may have begun about 4.4 billion years ago, several hundred million years earlier ... Thursday. Our planet formed 4.6 billion years ago, and many scientists believe it was ...
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