Time for Collaboration: A. E. Douglass, Archaeologists, and the Establishment of Tree-Ring Dating in the American Southwest.

From: Journal of the Southwest | Date: September 22, 1998| Author: NASH, STEPHEN E. | Copyright information

Archaeologists working for astronomer Andrew Ellicott Douglass discovered tree-ring specimen at Whipple Ruin in Show Low, Arizona in Jun 22, 1929. Their important discovery allowed archaeologists for the first time to establish accurately an order of events in Christian calender dates for prehistoric sites. It also allowed Douglass to date about 40 prehistoric sites across the American Southwest.

Archaeologist Fay-Cooper Cole of the University of Chicago wrote in 1934 that "chronol...

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