HistoryWorld - East Africa
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  East Africa
     
c. 15 million years ago
 
Narrative history in HistoryWorld    
A primate of this period, at ease both in the trees and on the ground, is probably the common ancestor of gorillas, chimpanzees and humans      
c. 6 million years ago
 
Narrative history in HistoryWorld    
Various species of ape develop the habit of walking upright on two feet      
c. 4.5 million years ago
 
Narrative history in HistoryWorld    
Certain primates, in eastern and southern Africa, are by now sufficiently like humans to be classed as hominids      
c. 4.4 million years ago
 
Narrative history in HistoryWorld   
Ardi, the earliest known individual of partially human type (or hominid), is of the species Ardipithecus, in the Awash valley region of Ethiopia     
Skeleton of Ardi, an Ardipithecus fossil
(National Museum of Ethiopia)

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c. 3.6 million years old
 
    
Two or three hominid individuals, probably Australopithecus Afarensis, walk upright through volcanic ash at Laetoli, 30 miles south of Olduvai Gorge, and their footprints are preserved within subsequent ash deposits       
The Laetoli footprints
National Museum of Tanzania

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c. 3.2 million years ago
 
Narrative history in HistoryWorld    
A female of the species Australopithecus Afarensis (nicknamed Lucy when her skeleton is found), lives in the Afar Depression in Ethiopia within 50 miles of where her predecessor Ardi was unearthed      
c. 2.6 to 1.2 million years ago
 
   
Australopithecus Boisei lives in East Africa, and is possibly the first hominid species to use stone tools      
A skull of Australopithecus Boisei
(National Museum of Kenya)

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c. 2.5 million years ago
 
      
The earliest known chipped stone tools are made by hominids at Gona, in the Awash Valley in Ethiopia, close to the region where Ardi and Lucy lived many millennia earler         
c. 2.2 million years ago
 
Narrative history in HistoryWorld    
Creatures of the genus Homo, classified as early modern humans, are living in east Africa      
c. 2.2 to 1.4 million years ago
 
   
Homo Habilis, the earliest widely acknowledged species in the genus Homo, lives in East Africa with a brain size much greater than the contemporary Australopithecus Boisei      
An almost complete skull of Homo Habilis
(National Museum of Kenya)

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