By the empires and trading.
The West African trade empires made their money mainly by trading slaves, salt and gold.
It was exloited
trading
Egypt, Sudan & Zimbabwe
Supply and demand
SonghiGhanaMali
They were centres for transportation and trading.
Early empires gained wealth and power by trading slaves, gold, and ivory.
Early empires gained wealth and power by trading slaves, gold, and ivory.
GHANA AND MALI
Mali , Ghana , and Benin.