Productivity is an economic measure of the amount of output (revenue, sales, profit) resulting from a measure of input (land, labor, capital).
It is a measure of the amount of output produced by a given amount of inputs in a specific period of time.
The African trade in gold and salt caused the Ghana Empire to rise to prominence, and the disruption of that trade led to its decline. During its time, Ghana was one of the richest polities in Africa.Though Ghana was not rich in natural resources itself, it was located along an important trade route between gold- and ivory-producing areas in the south and salt miners in the Sahara desert to the north. As a result of this strategically important location, Ghana became a wealthy entrepot.
Though the exact origins of Ghana are clothed in mystery, tradition places the empire's origins in the fourth century AD. By the ninth century, the area had become affluent according to accounts by Muslim traders who began to visit the area. These traders from the north continued to develop the trade, linking its gold resources with the vital markets in the Mediterranean region, and the empire grew larger by incorporating its neighbors.
The decline of the empire started in the 11th century, when the Almoravids, a militant confederation of Muslims, began to attack the empire and even conquered it for a time. Though their grip on power did not last long, the chaos they brought to the region destabilized trade, hurting the empire's sources of income. Decline ensued. The remnants of Ghana were incorporated into the Mali Empire in 1240.
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The Hims wanted the Muslim's to rule them. They wanted them to lead them because they thought they were just and had good rules. They thought that they would rule better than the state which was ruling them at that moment with oppression and tyranny.
Looking back at history let's you see what didn't work and what will come in the future. Let's say I am looking for a way to stop viruses on computers, I would look back and see where viruses attacked, what their intent was and fixed vulnerabilities that have not been fixed.
Influential
Why because It was a organized effort to end slavery and it spreader through the united states.
