Answer:
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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
Explanation:
The first agreement for self-government to be created and enforced in America.
To allow the force of expanding gases from the gunpowder to act for a longer time
The Freedmen' s Bureau was established to help protect the right of African Americans.
Answer:
They were helpful in spreading necessary information across the empire.
