who is responsible for spreading agriculture and iron smelting in sub saharan africa
Iron metallurgy in Africa Iron smelting was practiced by the Nok culture of Nigeria from as early as 1000 BC. The nearby Djenné-Djenno of the Niger Valley between Mali and Nigeria shows evidence of iron production from c. 250 BC. The technology was spread by the Bantu expansion to Eastern and Southern Africa during c. 500 BC to AD 400 as shown in the Urewe culture.[1]