Analysis of information sources in references of the Wikipedia article "Herero people" in English language version.
pastoralists speaking Cushitic languages once spread as far as south-central Africa, where they were in contact with the ancestors of present-day Khoe-speakers. This led to a transfer of both species of domestic animals and also some rather specific techniques of pastoral lifestyle including dairy-processing etc. Khoe pastoral culture is known mainly from records and their original sheep and cattle breeds have now become heavily crossbred. The explanation for related traits among adjacent Bantu peoples is likely to be a similar, subsequent transfer from the Khoe to the Bantu, although it is possible that there was also direct Cushitic contact with the Bantu in the same region.