The cotton gin is a machine that separates cotton seeds from cotton fiber it was an important invention for their time because it dramatically reduced the time it took to separate cotton seeds from cotton fibers.
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The Tariff of 1816, also known as the Dallas Tariff, is notable as the first tariff passed by Congress with an explicit function of protecting U.S. manufactured items from overseas competition. Prior to the War of 1812, tariffs had primarily served to raise revenues to operate the national government.
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Martin Luther King Jr. gave his famous "I Have a Dream" speech during the March on Washington
John Brown was guilty of treason because he made war against the United States by attacking and taking control of the US military installation at Harper's Ferry.
I believe that would b B. The British closed down the Boston harbor completely
