Grant, Savanna, Morgan
Gold and salt are mainly what they are known for but often traded kola nuts (which were a form of caffeine), and slaves, ivory, and cloth.
Because of the language barrier in Africa they had to use a silent bar parter system in order to trade. This was either through holding up an amount on your fingers that you were willing to pay.
Spread of Islam
Islamsreaded vastly in this region because it was already well known in Egypt and because of the trade route beginning in Egypt people went to go establish more land spreading Islam. Another spark in the growth of Islam was when Muhammad moved from Mecca to Medina which was closer to the Arabian coast.