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Louisiana Purchase
The Louisiana Purchase was when Napoleon secretly bought the Louisiana territory from France in 1803. It doubled the size of the US for 3 cents/ acre. -
War of 1812
A war between the US and Great Britain caused by the British seizure of American ships, and British aid to the Indians attacking the Americans on the western frontier. This increased American nationalism and the growth of industry. -
Monroe Doctrine
This declared that Europe should not interfere in the affairs of the Western Hemisphere and that any interference by Europe would be a threat to the US.The New World colony also could not be recolonized by Europe under this doctrine. -
Indian Removal Act
This allowed Andrew Jackson to negotiate land-exchange treaties with tribes living east of the Mississippi; This forced the removal of thousands of American Indians to the West. -
Nulification Crisis
This was a confrontation between South Carolina and the federal government over the attempt to declare null and void within the state. The resolution helped to undermine the nullification doctrine that upheld the right of states to nullify federal acts. -
Election of 1844
During this election, democrat James Knox Polk defeated Whig Henry Clay in a close contest that turned on foreign policy. Polk favored the annexation of Texas and Clay opposed it. -
Mexican-American War
This was a war between the United States and Mexico caused by the United States’ annexation of Texas. The war resulted in the United States’victory and acquisition of much of the Mexican territory from the Rio Grande to the Pacific Ocean.
