The most important trade in Ghana was salt and gold. Ghana doesn’t have salt and gold mines ,but they are in the middle of everything. In Ghana, gold came from a forest region south of the savanna between the niger and Senegal rivers. The Sahara contained deposit of salt from other side of empire.
Ghana had a strong army. Ghana’s king controlled trades between empires and commanded a larger army. He could demand taxes and gifts from the chiefs of surrounding lands
The Songhai empire had two Muslim rulers. They were exterior of their empire. Sumi ail built a professional army. In 1400s people who been under control started to break away.
Mali and mansa musa
Songhai gained control of all of the important trades routes. Songhai also extended its territory to the large bend in the Niger River and Gao. Askia Mohammad,the second ruler, set up an efficient system and chose able officials.
In Mali the black men came up from their country and took away their salt from taghzaz. Between the 11th and the 17th centuries, Africa was leading supplier of gold to the international economy. It also combination wealth with of the great states of the western suban
“When he comes to a village the womenfolk of the blacks bring out Millet ,milk....”(ibn battuta on trade within Mali (1352) in hamdun and king). When musa travels to other empires with welcomes. In mali they use gold for coins and salt for food. They also trade animal skin and more