Starting some 4,000 to 6,000 years ago, Bantu-speaking communities from western Africa spread across the southern half of the continent, bringing farming, livestock, pottery and ironworking. Today about 350 million Africans speak one of roughly 500 Bantu languages. Katarina Zimmer explains how linguists first spotted the pattern in shared vocabulary, how archaeologists matched it with pottery and villages, and how DNA now adds a third line of evidence.

Much is still debated, from the routes taken to how newcomers met earlier peoples, and the work is slow because records are sparse and funding thin. For freethinkers it is a fine example of how independent methods can test and sharpen each other, and of how much of Africa's deep history is only now being written.

Source: Katarina Zimmer, Knowable Magazine via Ars Technica (2026-11-07)
https://arstechnica.com/science/2026/11/the-migration-that-transformed-africas-languages-genes-and-cultures/

Summarised by the FTI newsdesk.