The philosophy drove 19th-century U.S. territorial expansion and was used to justify the forced removal of Native Americans and other groups from their homes. The rapid expansion of the United States intensified the issue of slavery as new states were added to the Union, leading to the outbreak of the Civil War.
The American Revolution was an epic political and military struggle waged between 1765 and 1783 when 13 of Britain's North American colonies rejected its imperial rule. The protest began in opposition to taxes levied without colonial representation by the British monarchy and Parliament.
The Taxation Acts, the Boston Tea Party, and the Intolerable Acts were the four main causes that lead to the American Revolution.
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