What was a major effect of the development of classical civilization

Classical civilizations have had both a positive and negative effect on the modern world. From around 1750- 133 B.C.E., discrimination based on gender arose in classical Greece. ... As a result of Greece's isolation, each city-state developed different cultures, like Athens and Sparta.

Explanation:

When Greece developed, it did not form a centralized government, but instead formed a collection of city-states, or polis. Because of Greece’s mountainous terrain, the empire was not unified and upper class men ruled each city-state. As a result of Greece’s isolation, each city-state developed different cultures, like Athens and Sparta. Because of the different cultures all throughout Greece, gender roles differed from polis to polis. Because Greece adopted ideas from Mesopotamia and Egypt, the Greek poleis developed as generally patriarchal, though women were given slightly more rights than previous societies. Some Greek city-states developed as more patriarchal than others.

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these civilizations were located around fertile rivers, where they could produce an abundance of crops