
Chapter 5
The 1800s was a period of massive geographic expansion, conflict, and internal division for the young nation. In 1803, the U.S. purchased the Louisiana Territory from France, doubling its size. The 19th century saw multiple wars including the War of 1812, the Mexican-American War, and the Spanish-American War. However, the most defining conflict was the Civil War (1861-1865), fought between the Northern states (the Union) and the Southern states (the Confederacy) primarily over the issue of slavery, states' rights, and economic differences. Abraham Lincoln, President during the Civil War, preserved the Union and issued the Emancipation Proclamation in 1863 to free enslaved people in the rebelling states. After the war, visionary leaders like Susan B. Anthony fiercely advocated for women's voting rights.
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"In 1803, the United States purchased the Louisiana Territory from France in a landmark transaction known as the Louisiana Purchase. For a price of approximately $15 million, the U.S. acquired a vast region of roughly 828,000 square miles, effectively doubling the size of the nation overnight. This territory stretched from the Mississippi River in the east to the Rocky Mountains in the west, and from the Gulf of Mexico in the south to the Canadian border in the north, providing the U.S. with full control of the vital Port of New Orleans and the Mississippi River trade route."