Teeth and bones reveal how the Bantu speaking people's agricultural knowledge spread across the African continent. The art of cultivation has originated in different parts of the world, isolated from each other. At the border between Cameroon and Nigeria, Bantu-speaking people who became farmers about 5,000 years ago lived.
Researchers have had different theories about how their knowledge spread to other groups of people and across Africa. Carina Schlebush, Uppsala University, has used genetics to help map its pathways. The Bantu people's agricultural expansion is one of the world's largest and laid the foundation for a completely new lifestyle.