About how long did it take for the Bantu people to reach the Kalhari Desert?

Between 1000 B.C-1100 A.D., East Africa experienced a wave of migrations from all throughout Africa. Over a period of 1000 years, groups moved away from their homeland which is now Cameroon. The Bantu, were a class of over 400 ethnic groups who spoke a similar language, and shared common customs.

Explanation:

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answer; (73%);

answer; i believe the correct answer is prefrontal cortex;