Many items were traded between North Africa and West Africa, but the two goods that were most in demand were gold and salt. The North Africans wanted gold, which came from the forest region south of Ghana. The people in the forests wanted salt, which came from the Sahara.
Gold, sought from the western and central Sudan, was the main commodity of the ... of the camel, Berber-speaking people began crossing the Sahara Desert. ... in sub-Saharan Africa, the consumption of Saharan salt was promoted for trade
Historians consider political cartoons to be credible resources in historical inquiry because they give a true picture of the political environment in that particular time period. ... Such cartoons are drawn by knowledgeable people who understand the public mindset very well.