Briefly describe the role of the Kingdom of Mali in global trade. What was the key to its great wealth? Support your answer in a clear, well-organized paragraph.

The Kingdom of Mali had an important role in global trade because it was a source of salt. Historically, salt was extremely important for Africans and often it cost more than gold and Mali had a lot of it. They traded salt with others and everyone wanted to trade with them because of it so they quickly became a very important factor in worldwide trade.