# data[].attributes.body
The Treaty of Paris was on September 3, 1783, ending the War of the American Revolution.the agreement recognized U.S. independence and granted the U.S. significant western territory.

# data[].attributes.body
provided a dual system of congressional representation. In the House of Representatives each state would be assigned a number of seats in proportion to its population.

# data[].attributes.body
Three-fifths compromise, compromise agreement between delegates from the Northern and the Southern states at the United States Constitutional Convention that three-fifths of the slave population would be counted for determining direct taxation and representation in the House of Representatives.

# data[].attributes.body
beginning with the first textile mill in New England in the 1790s, created an economy that did not need slaves. Southerners, however, continued to use slave labor on their farms because agriculture was profitable.

# data[].attributes.body
It prohibited transporting slaves from the United States to any foreign place or country. It also made it illegal for American citizens to outfit a ship for purposes of importing slaves.

# data[].attributes.body
The most significant effect of the cotton gin, was the growth of slavery. While it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for enslaved labor to grow and pick the cotton.

# data[].attributes.body
the Louisiana Purchase added much of the Great Plains to the United States, set the stage for expansion to the Pacific Ocean, and set in motion sectional conflicts over slavery that led to the Civil War.

# data[].attributes.body
Originally, the Electoral College provided the Constitutional Convention with a compromise between two main proposals: the popular election of the President and the election of the President by Congress.

# data[].attributes.body
The 1808 Act imposed heavy penalties on international traders, but did not end slavery itself nor the domestic sale of slaves.

# data[].attributes.body
In an effort to preserve the balance of power in Congress between slave and free states, the Missouri Compromise was passed in 1820 admitting Missouri as a slave state and Maine as a free state.

# data[].attributes.body
The Underground Railroad physically resisted the repressive laws that held slaves in bondage. ... By provoking fear and anger in the South, and prompting the enactment of harsh legislation that eroded the rights of white Americans, the Underground Railroad was a direct contributing cause of the Civil War.

# data[].attributes.body
The abolitionist movement was an organized effort to end the practice of slavery in the United States. The animosity fueled by the movement, along with other factors, led to the Civil War and ultimately the end of slavery in America.

# data[].attributes.body
Texas was admitted to the United States as a slave state. The annexation of Texas contributed to the coming of the Mexican-American War (1846-1848). The conflict started, in part, over a disagreement about which river was Mexico's true northern border: the Nueces or the Rio Grande.

# data[].attributes.body
Manifest Destiny, in U.S. history, the supposed inevitability of the continued territorial expansion of the boundaries of the United States westward to the Pacific and beyond.

# data[].attributes.body
Harriet Beecher Stowe wrote the novel Uncle Tom's Cabin, which vividly dramatized the experience of slavery. ... Championed by abolitionists but denounced in the South, it contributed to popular feeling against slavery so much that it is cited among the causes of the American Civil War.

# data[].attributes.body
Uncle Tom's Cabin widened the viewpoints between the North and the South, greatly strengthened Northern abolitionism, and weakened British sympathy for the Southern cause. The most influential novel ever written by an American, it was one of the contributing causes of the Civil War.

# data[].attributes.body
Bleeding Kansas describes the period of repeated outbreaks of violent guerrilla warfare between pro-slavery and anti-slavery forces following the creation of the new territory of Kansas.

# data[].attributes.body
The Dred Scott Decision outraged abolitionists, who saw the Supreme Court's ruling as a way to stop debate about slavery in the territories. The divide between North and South over slavery grew and culminated in the secession of southern states from the Union and the creation of the Confederate States of America.

# data[].attributes.body
Lincoln's anti-slavery platform made him extremely unpopular with Southerners and his nomination for President in 1860 enraged them.

# data[].attributes.body
The victory of Abraham Lincoln in the 1860 presidential election triggered cries for disunion across the slaveholding South. The secession of South Carolina precipitated the outbreak of the American Civil War in Charleston Harbor