Công cụ bằng đá 3,3 triệu năm
Cập nhật: 08:08 16/04/2015 GMT+7
Các nhà khoa học Mỹ phát hiện những công cụ bằng đá lâu đời nhất tại Kenya, với niên đại khoảng 3,3 triệu năm.
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urBM4bu1Skzhu6Lhu5BK4bu14bu4WFXhu5Dhu7XDilDhu7Vi4buG4buQPeG6sOG7kOG7qEvFqOG7kuG7pOG7qsav4bu1S+G7kuG6qsOK4bu14bqw4buqxq/hu6jFqOG6sMOV4buS4bukTOG7qEvhu4bDikzhu5Dhu4bGr+G7teG7qOG6tOG7kuG7tcWo4bqw4bup4buvL+G7pHbhu6/hu6Thu7XDisOV4bqwxq/Gr3Phu7Phu6Qz4buS4bq+PeG7s3ZsS+G7huG7kuG7teG7uOG7kOG7hiPhu6TFqOG7hsavxq/hu68v4bukdg==