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Answer:
With the increased volume of trans-Saharan trade in the Islamic period, new cultural influences began to spread in Western Africa. The most important of them was a new religion, Islam, which was adopted in the states belonging to the sphere of the caravan trade by the end of the eleventh century.
Causes of the trans-Saharan trade include:
- need for goods not available in home country
- better technology and logistical practices allowing for further distances to be travelled
The traders who came to the nations beyond the Sahara came with goods that those nations did not have. In return, those nations had goods that the traders did not have either so they were able to trade.
Better technology and logistical practices such as caravan travelling and the establishment of motels in the desert, meant that people could go longer distances and survive the harsh Sahara weather.
The effects of this trade were that:
- Powerful empires arose in West Africa
- Islam spread to Sub-Saharan Africa
As more trade happened in West Africa, empires such as the Mali empire, became very wealthy and spread their influence far and wide.
Islam also spread to west Africa because most of the traders were Muslim and they preached their religion.
In conclusion, the Trans-Saharan trade changed the face to west Africa forever as Islam spread and empires were founded.
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