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.
Carbal was the first explorer to sail to the east coast of South America. He sailed for Portugal. Hope it help!
It is described as the ethnocentric attitude
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The United States was forced to ask itself harsh questions about race and equality after WWII because many blacks and women had been called in a variety of ways to help their country, which did not treat them fairly back home--leading to accusations of hypocrisy.