The Sahara region is an arid desert with little rainfall and few resources, making it difficult to sustain a population. As a result, people began to move out of the Sahara region and settle in the Sahel, which is a semi-arid region located south of the Sahara. The Sahel has more rainfall and resources than the Sahara, making it a more attractive place to live. Additionally, the Sahel is located near the Niger River, which provided a reliable source of water for irrigation and other agricultural activities. The Sahel also had more fertile soil than the Sahara, allowing for the growth of crops and the development of a more diverse economy. Finally, the Sahel was located near trade routes, which allowed for the exchange of goods and services and the growth of commerce.
