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Two important hominid specimens were found in 1967 by an expedition led by Richard Leakey to a site called Kibish, in the Omo Valley in southern Ethiopia. The dates of these specimens were recently revisited and secured at 195,000 years. The Kibish skull of Omo 2 and the partial skull, mandible and associated postcranial bones of Omo 1, mark the critical earliest fossil evidence of modern Homo sapiens in Africa