Answer:
The wealth, prestige, policies, and power of Athens caused resentment among other city-states. A plague that killed many Athenians helped Sparta defeat Athens. The Peloponnesian War weakened all of the Greek city-states for 50 years.
The primary causes were that Sparta feared of the growing power and influence of the Athenian Empire. The Peloponnesian war began after the Persian Wars ended in 449 BCE. ... This disagreement led to friction and eventually outright war. Additionally, Athens and its ambitions caused increasing instability in Greece.
Causes of the Migration<span>. When the Emancipation Proclamation was signed in 1863, less than 8% of the African American population lived in the Northeastern or Midwestern United States. By 1900, about 90% of African Americans still lived in Southern states.
</span>The Great Migration<span> was the mass movement of about five million southern blacks to the north and west between </span>1915<span> and 1960. During the initial wave the majority of</span>migrants<span> moved to major northern cities such as Chicago, Illiniois, Detroit, Michigan, Pittsburgh, Pennsylvania, and New York, New York.</span>
Answer:
Political scientists discover a new method of scientific research.
Explanation:
