Press Announcements

Archaeologists study the sediments at the Bokol Dora site.

Oldest Evidence of Stone Tool Production Discovered in Ethiopia

June 03, 2019

Associate Professor of Anthropology David Braun joined an archaeological team in Ethiopia that discovered the oldest evidence of stone tool production, dating back more than 2.58 million years. The excavation took several years before the researchers exposed a layer of animal bones and hundreds of pieces of chipped stone representing the earliest evidence of our direct ancestors making and using stone knives.