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Around 1794 (patented on March 14, 1794)
The invention of the Cotton Gin change the process of using cotton to make many items - changing the economy throughout the world.

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March 4th, 1797
John Adams becomes the second president of The United States of America.

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France Transfers Louisiana Territory to the US

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France Transfers Louisiana Territory to the US

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March 10, 1804
Almost a year earlier, Thomas Jefferson purchased the land. However, on this date, the land was officially transferred to the US.

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May 14, 1804
On this date, Meriwether Lewis, William Clark, and the rest of their group embark on their expedition.

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In 1805, Lewis and Clark reach the Pacific Ocean!

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The initial contracts for the National Road are signed in 1811.

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The War of 1812 (and the economic changes that followed)

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The War of 1812 (and the economic changes that followed)

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June 18, 1812 - February 18, 1815
The War of 1812 caused many economic changes to the United States of America to occur.

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In 1814, the Treaty of Ghent is signed. This officially ends the war.

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The Battle of New Orleans is fought on January 8, 1815.

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In 1819, Spain agrees to hand over Florida to the USA.

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March 2nd, 1820
The two sides of pro and anti slavery compromise with the Missouri Compromise.

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1823
In 1823, the large-scale mill, Lowell Mills, is founded.

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December 2nd, 1823
The Monroe Doctrine is created.

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The Erie Canal opens up in 1825! This is great for New York!

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The 1828 (actually in 1828) Recession occurs! This lead to issues like a rise of unemployment.

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March 4th, 1829
The seventh president, Andrew Jackson, begins his first term as president!

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President Jackson signs the Indian Removal Act in 1830, authorizing the removal of Native Americans.

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The Trail of Tears begins during the year 1831.

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August 21, 1831
The slavery rebellion started by Nat Turner began on August 21, 1831.

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On January 30, 1835, a painter of England attempts to assassinate president Jackson.

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The well-known migration to the Oregon Country known as the Oregon Trail begins in about 1843.

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Starting in the year 1845, The United States receives a mass amount of immigrants from Ireland due to the Great Famine.

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In 1846, the US acquires Oregon through the Oregon Treaty.

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The Trail of Tears, which started in the year 1831, ends in 1850.

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President James K. Polk confirms to the population that gold has been found in California - causing gold fever across the nation starting in 1848.

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The Mexican War, which included Mexico and The United States of America, begins on April 25th, 1846 and ends on February 2nd, 1848.

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A Women's Rights Convention is held in 1848 in Seneca Falls, New York.

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In 1849, Harriet Tubman escapes slavery and will become one of the most well-known people of the Underground Railroad.

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In 1854, the Kansas-Nebraska Act goes into effect.

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The trial with John Brown occurs in the year 1859.

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John Brown is executed on December 2, 1859.

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On November 6, 1860, Abraham Lincoln gets the temporary name: president elect.

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In 1861, Abraham Lincoln is sworn into office!

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The Civil War begins on April 12, 1861.

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The Civil War ends on April 9th, 1865.