People or land · The Swahili Coast and the Gold Country · as at first light, 1 January 1200

Rift and highlands herders

The cool grasslands of the western Kenya highlands (Uasin Gishu, Nandi, the Mau, Kericho) and the central Rift round Nakuru, Naivasha and Baringo belong to Southern Nilotic-speaking herders and farmers, the forebears of the Kalenjin and their kin, who had absorbed or displaced earlier Southern Cushitic herders.

Around 1200 their homesteads take the form archaeologists call Sirikwa: sunken, stockaded cattle pens with houses round the rim (radiocarbon: proto-Sirikwa about 700-1200, Sirikwa culture about 1200-1800, fully formed in the central Rift by 1300). They kept cattle, sheep and goats for milk and grew cereals; they took circumcision and age-sets from Cushitic neighbours. Hunter-foragers, the Okiek, lived in the Mau and other forests.

The Maasai, whose arrival in the central Rift belongs to the following centuries, are not yet here.

Who holds it

Name
Not named
Title
Elders of homesteads and age-sets
Since
Not pinned
Confidence
low

What it holds

  • The Uasin Gishu and Nandi plateaus
  • The Mau and Kericho highlands
  • The central Rift round Nakuru, Naivasha, Baringo and Bogoria
  • The Kerio valley and the Cherangany hills

How things stand that morning

Self-governing herders; the Sirikwa pattern taking shape.

Customs

Age-sets and circumcision; elders' councils (kokwet in later Kalenjin practice); homestead herding.

Places of note

  • Hyrax Hill: Sirikwa hollows and bao boards (see the town record)

Where the sources disagree

Evidence: Excavated Sirikwa and earlier sites with radiocarbon dates; linguistic reconstruction (Ehret) for the people; the ethnic labels are inferred.

On the map: Rough outline of the highlands and the Rift floor.

Sources and studies

  1. Wikipedia, 'Sirikwa culture' (after J. E. G. Sutton and M. Kyule)
  2. Wikipedia, 'Kalenjin people' (Southern Nilotic origins, the Pastoral Iron Age, the Sirikwa, the Okiek)
  3. C. Ehret, Southern Nilotic History: Linguistic Approaches to the Study of the Past (1971)

Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.