History › First civilizations › Agricultural (Neolithic) Revolution
Bantu expansion across Africa
c. 1500 BC – AD 500 (start debated)· Event· Middle East & Africa
Mostly agreedGood evidence; some details, dates or numbers uncertain.
Over roughly 2,000–3,000 years, farmers speaking Bantu languages spread from West-Central Africa across most of the continent's southern half.
See it on the History map →What happened
From a homeland near today's Nigeria–Cameroon border, Bantu-speaking groups moved gradually, generation by generation, south through the rainforest and east to the Great Lakes, reaching southern Africa by about AD 300–500. They brought yams, millet, sorghum, cattle, pottery and, from about 500 BC, ironworking. They absorbed or displaced many hunter-gatherer peoples. Today roughly 500 Bantu languages, including Swahili, Zulu, Shona and Kikongo, are spoken by around 350 million people (estimates vary).
Why it matters
It is one of the largest migrations in human history and explains why languages from Kenya to South Africa are closely related.
How we know
Linguists trace the related Bantu languages to one homeland; pottery styles and iron-smelting sites mark the route; DNA studies show people moved, not just ideas.
Still debated
When it began, what drove it (farming, climate, iron) and the exact routes through or around the rainforest are still debated.
Connections (3)
▸Agricultural (Neolithic) Revolution was carried south and east by Bantu expansion across AfricaMostly agreed
The connection
Africa had its own early farming centers, in the Sahel, West Africa and Ethiopia. From West Africa, Bantu-speaking farmers carried yams, oil palm, millet and sorghum, plus cattle and pottery, south through the rainforest and east toward the Great Lakes, then on to southern Africa, bringing farming to regions long home to hunter-gatherers.
When and how
From near today's Nigeria–Cameroon border, beginning perhaps 3000–1500 BC and reaching southern Africa by about AD 300–500.
How sure are we?
Pottery, crops and village sites appearing in sequence along the route; the Bantu language family tree; DNA showing farmer ancestry spreading and mixing with local foragers.
Debates and open questions
Whether farming itself, a drier climate that thinned the rainforest between about 2000 and 500 BC, or later iron tools mainly drove the expansion is debated.
▸Bantu expansion across Africa laid the foundations for Great ZimbabweMostly agreed
The connection
Bantu-speaking farmers spread iron working, cattle herding and crops across central and southern Africa over many centuries. Their descendants on the Zimbabwe plateau, ancestors of today's Shona, built on that base: cattle wealth, iron tools and village chiefdoms grew into the larger states of Mapungubwe and then Great Zimbabwe.
When and how
Bantu-speaking farmers reached the region by about AD 200–500; Mapungubwe, just south of the Limpopo River, flourished about 1220–1290, before Great Zimbabwe's peak in the 1300s.
How sure are we?
Related Bantu languages and pottery styles; iron-working sites and cattle bones; Shona oral traditions; archaeology linking Mapungubwe's culture to Great Zimbabwe.
Debates and open questions
How directly Mapungubwe's rulers passed power to Great Zimbabwe, and how farming chiefdoms became kingdoms, are debated.
▸Iron Age: ironworking spreads equipped the farmers of the Bantu expansion across AfricaMostly agreed
The connection
By about 500 BC, Bantu-speaking communities near Lake Victoria were smelting iron. Iron axes and hoes made it easier to clear forest and work the soil, and ironworking spread with Bantu speakers into eastern and southern Africa. But the migrations had begun earlier, without iron, so iron sped up a movement already under way.
When and how
Around Lake Victoria (the Urewe culture) by about 500 BC, then south to today's Zimbabwe, Mozambique and South Africa by about AD 300–500.
How sure are we?
Iron-smelting furnaces and slag at Early Iron Age sites, dated by radiocarbon, follow the spread of Bantu-linked pottery styles.
Debates and open questions
Whether African iron was invented locally or learned from North Africa, and how much iron drove the expansion, are debated.