Bantu Migration Timeline

Archaeological sites south of Shum Laka, in southern Cameroon and Gabon, indicate that the Western Stream of the Bantu expansion began between 5000 and 3000 BC.

Image source: Bantu expansion

Evidence from sites in Gabon is included in the archaeological indications that the Western Stream began during the period from 5000 to 3000 BC.

Amid migration from Nigeria and Cameroon, one branch diverged toward the eastern Bantu-speaking regions, including the area that is now the Democratic Republic of the Congo.

Agricultural Proto-Bantu peoples began migrating from the Nigeria–Cameroon region during the broad period from 2500 to 1200 BC.

Nigeria is identified as one of the source areas from which agricultural Proto-Bantu peoples began their migrations between 2500 and 1200 BC.

Cameroon is identified as a source region for agricultural Proto-Bantu migration during the period between 2500 and 1200 BC.

A western branch of the migrating Proto-Bantu peoples developed toward regions including the Congo and Gabon.

A period of climate change affected the West-Central African rainforest between 2000 and 500 BC, creating conditions thought to have supported Bantu expansion.

Climate-related degradation of the West-Central African rainforest between 2000 and 500 BC is thought to have aided the expansion.

Initial progress of the expansion was very slow, and central Cameroon was only reached around 1500 BC.

Herding practices reached the far south several centuries before Bantu-speaking migrants did, indicating that pastoral practices preceded the relevant Bantu-speaking migration there.

By the first century BC, Bantu-speaking communities in the Great Lakes region had developed iron-forging techniques.

The iron-forging techniques developed by Great Lakes Bantu-speaking communities by the first century BC enabled them to produce carbon steel.

Image source: Iron metallurgy in Africa

Some Eastern Cushitic speakers also settled along the Kenyan coast around 1000 AD.

Northern Kenya became a settlement area for some Eastern Cushitic speakers around 1000 AD.

Many centuries after the earlier phases of expansion, some Eastern Cushitic speakers settled in northern and coastal Kenya around 1000 AD.

In 1966, Roland Oliver published an article presenting correlations concerning the Bantu migration as a reasonable hypothesis.

Irish's 2016 dental analysis concluded that the common ancestors of West African and Proto-Bantu peoples may have originated in the western Sahara.

A 2023 genetic study sampled 1,487 Bantu speakers from 143 populations across 14 African countries.

The 2023 genetic study concluded that the expansion occurred approximately 4,000 years ago in Western Africa.

Seidensticker's 2024 work indicates that the prevalent paradigm forcibly connects Central African ceramics with Central African languages and treats the locations of language speakers and ceramic remains as synonymous.

Seidensticker argues that attempts to correlate linguistic reconstructions with archaeological data have propagated the faulty presumption that the earliest ceramics in an area prove the earliest presence of Bantu speakers, producing circular reasoning.