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Manifest Destiny was the 19th-century belief that the U.S. should expand across North America. This idea pushed for westward growth and led to land gains, but also caused conflicts with Native Americans and Mexico.

The western region benefited from this event the most.

Manifest Destiny was significant because it drove the U.S. to expand its land. This belief led to tensions with Mexico over borders, eventually causing the Mexican-American War in 1846.

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The Missouri Compromise of 1820 named Missouri as a slave state and Maine as a free state, balancing power in Congress.

The South gained Missouri as a slave state, which helped maintain the balance of power in favor of slavery.

The North benefited from Maine being admitted as a free state, which helped keep the balance between free and slave states in Congress.

So, it was a compromise that aimed to keep a balance of power between both the North and South.

This event was significant because it maintained balance in Congress.

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The Mexican-American War happened from 1846 to 1848. It started because the U.S. wanted more land, including Texas, California, and New Mexico. The U.S. won the war, and Mexico had to give up a large part of its land in the Treaty of Guadalupe Hidalgo.

The southern region benefited most from this War.

The Mexican-American War (1846-1848) was significant because it added a large amount of land to the U.S., including present-day California, Texas, and other western states. This new land created a conflict over whether slavery should be allowed in these areas. The argument between the North, which opposed slavery, and the South, which supported it, grew stronger. This disagreement helped set the stage for the Civil War.

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The growth of sectionalism in the United States occurred in the 1850s.

It was driven by disagreements over issues like slavery, economic differences, and political power between the North, South, and West. Key events such as the Missouri Compromise (1820), the Nullification Crisis (1832), the Compromise of 1850, etc. These tensions ultimately contributed to the outbreak of the Civil War.

The South benefited from sectionalism by gaining support for slavery, but this was short-lived and led to the Civil War.

The growth of sectionalism was a troubling event as it highlighted the country's inability to balance its regional differences, mainly over slavery, leading to increasing division and conflict.

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The Compromise of 1850 was a series of laws that admitted California as a free state, strengthened the Fugitive Slave Act, and allowed popular sovereignty in some territories.

The South benefited from the Compromise of 1850, because strengthened Fugitive Slave Act, which made it easier to capture and return runaway slaves.

The Compromise of 1850 was significant because it eased tensions between the North and South, though it also deepened divisions over slavery. While it aimed to prevent conflict, it highlighted the growing point that would lead to the Civil War.

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Popular sovereignty is the idea that the people in a territory should have the right to decide for themselves on important issues, like whether to allow slavery.

Popular Sovereignty benefited the South

The significance of popular sovereignty was that it gave people in territories the power to decide for themselves whether they wanted slavery. This idea was meant to settle disagreements peacefully, but it ended up increasing tension between the North and South, as each side wanted to control whether slavery spread. It contributed to the rising conflict that eventually led to the Civil War.

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The dread Scott decision occurred in 1857. The U.S. Supreme Court permitted slavery to spread throughout the nation. This decision benefitted the South because they wanted to hold onto slavery. This lead up to the Civil War because of the divide of the North and South due to slavery

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The Kansas-Nebraska Act was passed on May 30, 1854. It let people in Kansas and Nebraska decide if they wanted slavery or not. This law ended the Missouri Compromise and caused more tension between the North and South, leading to conflicts that helped start the Civil War.

The South benefited more from the Kansas-Nebraska Act because it gave them a chance to spread slavery into new territories.

The Kansas-Nebraska Act increased tensions between the North and South. It showed how deeply divided the country was over slavery. Violence broke out in Kansas, called "Bleeding Kansas," and it pushed the nation closer to the Civil War.

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In 1859, John Brown tried to start a slave revolt by taking weapons from a federal arsenal in Harpers Ferry. No slaves joined him. He was caught by Robert E. Lee’s troops, tried for treason, and hanged. Abolitionists saw him as a martyr. The North benefited because abolitionists supported Brown. The raid helped lead to the Civil War because the North saw Brown as a hero, but the South was scared, increasing tensions.

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In the 1860 election, the Republican Party nominated Abraham Lincoln. Democrats were divided, with Southern Democrats nominating John C. Breckinridge and Northern Democrats nominating Stephen Douglas. The Constitutional Union Party, made up of Southerners who supported the Union, nominated John Bell. With the vote divided, Lincoln won with only 39% of the popular vote, and no Southern state gave him electoral votes. The North benefited because Lincoln, the Republican candidate, won the presidency. His election helped lead to the Civil War because as soon as Lincoln was elected, South Carolina announced its secession from the Union. Six other Southern states, including Georgia, quickly followed.

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In 1861, after South Carolina seceded, there was a problem with federal forts in the state. President Lincoln sent supplies to Fort Sumter, a federal fort in Charleston. In response, Confederate troops fired cannons at the fort on April 12, 1861. The South benefited because the Confederacy took control of the fort. This attack led to the Civil War, as it marked the official start of the conflict. Afterward, Lincoln called on states to send militia to stop the “rebellion,” which led more Southern states to secede.