The tool-making technology of Homo erectus, associated with Olduvai Gorge in Tanzania. The name Oldowan is apparently from a German form of Olduvai.

An Oldowan chopper is created by chipping flakes off a flint. The resulting sharpened body piece of flint is the tool. This contrasts with later technologies where the flakes themselves were worked into sharper tools. It is the crudest human tool technology.

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