Africa · Evolution

Omo Valley early Homo sapiens

minimum-age estimate c. 233,000 +/- 22,000 years; the fossil is older than the overlying ash · East Africa

The Omo I remains establish that Homo sapiens was present in eastern Africa by at least about 233,000 years ago; the evidence does not identify one exclusive birthplace for the species.

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AI-generated evidence-guided visualization related to Omo Valley early Homo sapiens, minimum-age estimate c. 233,000 +/- 22,000 years; the fossil is older than the overlying ash. — AI-generated visualization based on the cited record and period context. It is not documentary evidence or an authenticated reconstruction of a single event.

How the setting appeared

River channels, floodplains and vegetation shifted with volcanic and climatic change in the lower Omo basin.

Agent citation CIT-NATURE-OMO-ICIT-SMITHSONIAN-HUMAN-ORIGINS Setting and material context · 2 registered source URLs · registration is not semantic proof · audit HEM-AUDIT-20260812

How people lived

Small mobile groups relied on ecological knowledge; homes, kinship systems and population names are not preserved.

Agent citation CIT-NATURE-OMO-ICIT-SMITHSONIAN-HUMAN-ORIGINS Lifeways and community · 2 registered source URLs · registration is not semantic proof · audit HEM-AUDIT-20260812

How people worked

Regional Middle Stone Age tools show prepared-core skills, but a single toolkit cannot be attached to the fossils.

Agent citation CIT-NATURE-OMO-ICIT-SMITHSONIAN-HUMAN-ORIGINS Work, tools and exchange · 2 registered source URLs · registration is not semantic proof · audit HEM-AUDIT-20260812

Belief, ritual and worship

No direct ritual evidence is associated with these remains.

Agent citation CIT-NATURE-OMO-ICIT-SMITHSONIAN-HUMAN-ORIGINS Belief, ritual and evidence limits · 2 registered source URLs · registration is not semantic proof · audit HEM-AUDIT-20260812

Historical geography

A dated anchor, not an exact border

The local map uses modern coastlines only for orientation. The marker identifies this record's geographic anchor, not the full reach of a community or polity.

Map geometry loads only when requested. Modern outlines are orientation only; historical geography and identities changed through time.

Agent citation CIT-NATURE-OMO-ICIT-SMITHSONIAN-HUMAN-ORIGINS Historical-geography anchor and stated limits · 2 registered source URLs · registration is not semantic proof · audit HEM-AUDIT-20260812

Evidence register

Guides used for this record

Each registered source ID is paired with its institutional URL for independent checking. Source count is transparent, and duplicate URLs count only once.

CIT-NATURE-OMO-I

Age of the oldest known Homo sapiens from eastern Africa

https://www.nature.com/articles/s41586-021-04275-8

Nature

CIT-SMITHSONIAN-HUMAN-ORIGINS

Human Origins Program: evidence of human evolution

https://humanorigins.si.edu/evidence

Smithsonian National Museum of Natural History

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