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Debate and Conflict: Slavery Issues Post-Mexican-American War

Understand the roots of conflict over slavery post-Mexican-American War, Free-Soil Party goals, Wilmot Proviso, Southerners' opposition to California statehood, details of Henry Clay's compromise, key roles of Calhoun and Webster.

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Debate and Conflict: Slavery Issues Post-Mexican-American War

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  1. Set Questions: • What area was acquired by the United States due to the Mexican-American War? • What is popular sovereignty? • What issue has been decided by popular sovereignty in today’s time period? • If a state wants to secede what does that mean?

  2. Objectives Explain why conflict arose over the issue of slavery in the territories after the Mexican-American War. Identify the goal of the Free-Soil Party.

  3. Terms and People popular sovereignty –policy having people in the territory or state vote directly on issues rather than having elected officials decide secede–to withdraw fugitives –enslaved people who have run away Henry Clay –Kentucky senator who worked on the Missouri Compromise

  4. Terms and People (continued) John C. Calhoun –South Carolina senator who opposed the Missouri Compromise Daniel Webster –Massachusetts senator who called for an end to the bitter sectionalism

  5. How did the question of admission of new states to the Union fuel the debate over slavery and states’ rights? The Missouri Compromise of 1820 temporarily quieted the differences between the North and South. However, new territory added as a result of America’s victory in the Mexican-American War renewed the conflict.

  6. Argument over Slave or Free From 1820 to 1848, the balance of power between North and South held: 15 free states and 15 slave states. The tie could be broken by new territory gained in the Mexican-American War.

  7. Even before the Mexican-American War had ended, politicians argued over what to do. The Wilmot Proviso Representative David Wilmot from Pennsylvania proposed a ban on slavery in all Mexican Cession territories. The bill passed in the House but not in the Senate. Still, it angered Southerners, who viewed the bill as an attack on slavery by the North.

  8. Why did Pennsylvania have a long tradition of opposing slavery? Quakers

  9. In the 1848 election, many Democrats and Whigs were disappointed with their party’s standon slavery. Free-Soil Party The party called for the territory from the Mexican-American War to be “free soil.” Antislavery Democrats and Whigs formed a new political party. The Free-Soil Party chose Martin Van Burenas its candidate.

  10. Critics called Free-Soil Party members “barnburners.” They accused them of burning the barn (the Democratic Party) to get rid of proslavery “rats.”

  11. Democratic candidate Lewis Cassof Michigan suggested a solution that he hoped everyone would like. popular sovereignty He wanted to let the people in each state or territory decide whether to allow slavery. The Free-Soil Party took votes awayfrom Senator Cass.

  12. Presidential Election of 1848 Zachary Taylor won the election.

  13. North and South also clashed over California, which was ready to become a state. Northerners argued that California should be a free statebecause most of its territory lay north of the Missouri Compromise. Southerners feared losing power. They threatened tosecede from the nation if California was made a free state.

  14. North and South also disagreed over other issues related to slavery. Northerners wanted the slave trade abolished in Washington, D.C. Southerners called for a law that would force the return offugitives. Months passed, and no solution was reached.

  15. In 1850, Senator Henry Clay of Kentucky made a series of proposals to resolve this conflict. The Senate’s discussion of Clay’s proposals produced one of the greatest debates in American history.

  16. John C. Calhoun spoke against the compromise, and Daniel Webster spoke for it.

  17. With the territories acquired by the Mexican-American war, the nation could no longer overlook the slavery issue. At first, Clay’s compromise seemed to work for both sides. However, the compromise soon fell apart.

  18. Closing Questions: • How did the land acquired due to the Mexican-American War fuel the debate over slavery? • What was the “balance of power” which was discussed in this section? • What was the main goal of the free soil party? • What did the Wilmot Proviso propose? • Why did southerners not want California to be admitted as a free state?

  19. Section Review QuickTake Quiz Know It, Show It Quiz

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