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A)
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they acted as a barrier to further settlement to the west
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Answer:
The percentage of African American soldiers were around 10%.
Explanation:
The preamble sets the stage for the Constitution (Archives.gov). It clearly communicates the intentions of the framers and the purpose of the document. The preamble is an introduction to the highest law of the land; it is not the law. It does not define government powers or individual rights.
Bloodies battle is: battle of Sharpsburgh
