The West African trade empires made their money mainly by trading slaves, salt and gold.
You're suppose to tell me
Salt and Gold
The main sources of wealth and power of all the West African empires was the armies they built whose superior iron weapons let them take control of the trade in salt and gold.
The "Great Three" West African empires were Ghana, Mali, and Songhai.
The Saharan trade extended from the Sub-Saharan West African kingdoms across the Sahara desert to Europe. The Saharan Trade linked such African empires as Ghana, Mali, and Songhay to the European world.
The people that carried goods from Europe to west African empires were Portuguese people.
Family structure, trade, and technology helped West African villages develop into empires. A few reasons why are family structure made everything possible (they got the job done). Trade made the villages rich (they could have taxed anyone who came in to trade and/or trade gold and salt). Technology helped villages turn into empires because they invented new tools (the new tools helped defend the empire and conquer other villages/empires and they helped with farming).
The main sources of wealth and power of all the West African empires was the armies they built whose superior iron weapons let them take control of the trade in salt and gold.
Arab and Berber Muslims from the Northern coast of Africa came to trade with West African Tribes and Empires like Ghana.
The Berber nomads primarily practiced a form of animism, worshipping natural elements and spirits. In contrast, West African Empires like the Mali Empire often followed Islam, introduced through trade and conquest.
The Songhai Empire