The Spread of Cushitic and Omotic
Source: Newman, James L. 1995. The Peopling of Africa. New Haven: Yale University Press. 53.
Date Digitized: 2009
This map outlines the early years of Cushitic spreading and some of the resulting diversity. In his book, Newman discusses how changes in agriculture lead to the diversification of Cushitic. Central Cushitic developed among grain cultivators and herders, and when groups migrated south into Tanzania and Kenya, their language became what is now known as southern Cushitic. Northern Cushitic was located predominantly in the arid lowlands, while the eastern branch was located in the southern rift valleys. He argues that ensete cultivators, which had once been thought to speak "western Cushitic", were most likely Omotic speakers.
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