the kingdom of Ghana existed during the 6th-13 century
i choose that the rulers of Ghana are greedy with their wealth and power was the most important .
Travel across the Sahara was challenging because the journey was long and travelers could lose their way or be unable to find water. also because the weather could be really hot during the day but freezing cold during the night.
Salt was important to them because it made the food taste better, the cattle needed it, and it replaced the salt you lose from sweating in the heat.
there was a male who would be the one to plan the time and the place where the trading would take place. and another person who would leave an item and take an item.
the kingdom of Ghana got declined because they ran out of gold