How did the kings of Ghana become wealthy?

The kings of Ghana became wealthy primarily through their control of trade routes and the taxation of the goods that passed through their kingdom. They also had access to valuable resources such as gold, which they traded with other regions for luxury goods.

Additionally, the kings of Ghana enforced a system of taxation on their subjects, which further contributed to their wealth. They were able to amass large amounts of wealth and power through their control over trade and taxation, establishing Ghana as a prosperous and influential kingdom in West Africa.