The fundamental cause of the Peloponnesian War was Sparta's dear and jealousy of the power and wealth of Athens. This caused Sparta to push many city-states to turn against Athens, as well as some citizens of Athens to turn against their own city-state. The Peloponnesian War was fought in three stages or phases as historians like to call them and took place from 431-404 BC.
<span>B. It allowed U.S. farmers to take advantage of the large quantities of cotton they could grow.
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Pope Urban II called for all Christians to unite and fight the Muslims to regain control of the Holy lands. After four Crusades, the Muslims won control of the Holy Lands. However, the crusades resulted in increased trade in Europe and the development of towns.