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Explanation: Archimedes is especially important for his discovery of the relation between the surface and volume of a sphere and its circumscribing cylinder. He is known for his formulation of a hydrostatic principle (known as Archimedes' principle) and a device for raising water, still used, known as the Archimedes screw.
Answer: Primary Sources are immediate, first-hand accounts of a topic, from people who had a direct connection with it. Primary sources can include: Texts of laws and other original documents. Newspaper reports, by reporters who witnessed an event or who quote people who did.
The value of enslaved African American’s increased during and after the revolutionary war as they fought in the war.
They were part of the reason that America won the revolutionary war - they left their masters to risk their lives for a country that looked down upon them originally.
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The key theme in the video of <em>From White Supremacy to Barak Obama </em>is the history of the Democratic party and how they wanted to continue slavery and also their idea of Manifest Destiny and how the Presidency of Barack Obama came to be.
<h3>Who are Democrats and Republicans?</h3>
This refers to the party system that exists in the United States of America as they have different ideals and beliefs.
Hence, we can see that the key theme in <em>How the Republican Part Went from Lincoln to Trump</em> talks about the earlier party, the Whigs who were divided about the issue of slavery, and the emergence of the Republic Party from Abraham Lincoln.
Read more about the American party system here:
brainly.com/question/1603400
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the treaty of versailles led to germany losing money, military, and land, which led to Hitler taking over and promising to get it back
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