cattle, hunting the abundant game population, and gathering indigenous
plants, the farmers cultivated sorghum and made, used, and traded iron
tools and weapons and copper ornaments. They thus had a richer and
more reliable diet and possessed stronger physiques than the hunters and
herders, and they achieved denser levelsof population. Moreover, whereas
the hunters and herders were mobile and slept in natural or portable
shelters, the farmers built stone or wattle-and-daub huts and established
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