Significant changes enacted at the national levels included the imposition of an income tax with the Sixteenth Amendment, direct election of Senators with the Seventeenth Amendment, Prohibition with the Eighteenth Amendment, election reforms to stop corruption and fraud, and women's suffrage through the Nineteenth century
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You are right! The Neolithic Revolution started About 10,000 BCE. Humans began to cultivate crops and tame animals.
Answer:
To protect the silk trade route
Explanation:
The han dynasty expanded and strengthen the wall so they could protect and ensure the safety of the silk trade route also because the northern nations were a threat as well. To keep raiding parties out as well were one of the reasons.
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