CodexMira
DeepEarlyNeolithicBronze AgeIron Age and ClassicalMedievalEarlyModern

Kokiselei hand axes

Precision Artifact

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The oldest known Acheulean hand axes, shaped symmetrically on both faces.

ContinentAfricaConfidence: measured
Held atNational Museums of KenyaConfidence: measured
MaterialVolcanic rockMohs 5-6 (mineral hardness scale)

Claims

FieldConsensusAlternative
Date

1760000 BCE - 1700000 BCE

c. 1.76 million years ago

Lepre et al., Nature, 2011
No claims found.
Purpose

Cutting and butchery tool

Lepre et al., Nature, 2011
No claims found.
MethodNo claims found.No claims found.

Precision & Alignment

consensusPrecision

Symmetrical shaping on both faces, a leap in toolmaking

Lepre et al., Nature, 2011
Sources: Lepre et al., Nature, 2011

Deep Prehistory — Kokiselei hand axes in context.

Deep Prehistory, 2,000,000 BCE to 10,000 BCEDates supported by mainstream archaeology. Natural formations remain undated.TimelineKokiselei hand axes, 1,760,000 BCE - 1,700,000 BCEXianrendong cave pottery, 18,000 BCE - 17,000 BCEKokiselei hand axes1,500,000 BCE1,000,000 BCE500,000 BCE100,000 BCE50,000 BCE20,000 BCE

Calculating elapsed time...

Approximate - counted from January 1, 1,730,000 BCE (UTC). Based on the midpoint of 1,760,000 BCE - 1,700,000 BCE.

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