Causation in Period 4 - AP U.S. History

1. Which development most directly caused the growth of wage labor in northern cities?

   Factory-based manufacturing and the shift away from artisanal production. Machines replaced skilled craftsmen with unskilled workers.

2. What was the most direct effect of the Erie Canal on the U.S. economy?

   Lowered shipping costs and linked the Great Lakes to Atlantic markets. Connected NYC to Midwest, making shipping 90% cheaper.

3. What was the most direct effect of the Fugitive Slave Act of 1850 on the North?

   Greater abolitionist activism and stronger personal liberty laws. Northerners resisted enforcing what they saw as immoral law.

4. What Supreme Court decision in 1857 most directly intensified sectional conflict over slavery?

   Dred Scott v. Sandford. Ruled that Black people couldn't be citizens and Congress couldn't ban slavery.

5. Which Union policy most directly caused large-scale Southern economic disruption during the war?

   The naval blockade and total war strategy against Southern infrastructure. Cut off trade and destroyed resources to break Southern will.

6. Which part of the Compromise of 1850 most directly increased Northern resistance to slavery?

   The strengthened Fugitive Slave Act. Required Northerners to help capture runaway slaves.

7. What was the primary effect of the Mexican Cession on U.S. politics?

   Intensified sectional conflict over slavery's expansion into new territories. New lands reopened explosive debate over slavery's spread.

8. What was the main cause of the rise of nativism and the Know-Nothing movement?

   Backlash against increased Catholic immigration and urban political change. Protestant Americans feared Catholic influence in politics.

9. Identify the immediate cause that turned Fort Sumter into the start of the Civil War in 1861.

   Confederate forces fired on the federal fort after Lincoln sent supplies. Lincoln's resupply mission triggered Confederate attack.

10. What was the primary cause of the Kansas-Nebraska Act of 1854?

    Stephen Douglas sought to organize territories using popular sovereignty. Douglas needed Southern support for his transcontinental railroad.

11. Identify the central cause of the Seneca Falls Convention of 1848.

    Women's exclusion from political rights and leadership in reform movements. Female abolitionists realized they lacked basic rights too.

12. Which event is the best immediate cause of the Compromise of 1850?

    Debate over slavery in territories gained from the Mexican–American War. California's admission as free state upset sectional balance.

13. What principle did popular sovereignty propose as the solution to slavery in the territories?

    Territorial voters would decide whether to allow slavery. Let local residents vote on slavery rather than Congress deciding.

14. Which reform movement was most directly caused by the Second Great Awakening's moral activism?

    Temperance movement. Evangelicals saw alcohol as sin destroying families and society.

15. What was the Wilmot Proviso designed to prevent in 1846?

    The expansion of slavery into territory gained from Mexico. Proposed banning slavery in all territory acquired from Mexico.

16. What was the primary cause of the emergence of the Whig Party in the 1830s?

    Opposition to Andrew Jackson's expansion of executive power. Jackson's use of veto and spoils system alarmed opponents.

17. Identify the main cause of the Indian Removal Act of 1830.

    White demand for southeastern land for cotton cultivation and settlement. Cotton boom made Native lands valuable to white settlers.

18. What was the most direct political effect of the Kansas-Nebraska Act in the North?

    The rise of the Republican Party. Northern outrage united antislavery forces into a new party.

19. What was the most direct cause of the Mexican–American War in 1846?

    Annexation of Texas and a dispute over the Texas–Mexico border. Polk provoked war by sending troops to disputed Rio Grande area.

20. Identify the main cause of rapid growth in U.S. transportation networks during Period 4.

    Need to move goods and people efficiently across a larger national market. Growing markets required faster, cheaper ways to transport goods.

21. What was the most direct cause of the Mexican-American War in 1846?

    A border dispute after U.S. annexation of Texas (Rio Grande vs. Nueces). Texas claimed the Rio Grande; Mexico insisted on the Nueces River.

22. What new issue created by the Mexican Cession most directly intensified sectional tension?

    Whether slavery would expand into the new western territories. The vast new lands forced Congress to decide slavery's future expansion.

23. What long-term economic change most directly caused increased sectional conflict by the 1840s?

    Industrialization in the North versus plantation slavery in the South. Different economic systems created incompatible regional interests.

24. What was the most direct effect of the Emancipation Proclamation on Union war aims?

    It made ending slavery an explicit Union war goal. Transformed the war from preserving Union to ending slavery.

25. What was the main causal goal of the Compromise of 1850?

    To reduce sectional conflict by balancing free and slave interests. Sought to prevent disunion through mutual concessions.

26. What was the key causal impact of Dred Scott on the status of slavery in the territories?

    It implied Congress could not ban slavery in the territories. Declared the Missouri Compromise unconstitutional.

27. Identify the key cause of increased immigration in the 1840s and early 1850s.

    Irish famine and German political unrest drove mass migration. Push factors in Europe created largest immigration wave yet.

28. What was the main cause of the Texas Revolution against Mexico in 1835–1836?

    Conflict over Mexican centralization and U.S. settlers' desire to keep slavery. Mexico banned slavery; American settlers refused to comply.

29. What was the primary effect of Indian removal on the Southeast in Period 4?

    Rapid expansion of plantation slavery and cotton production. Cleared land enabled massive cotton kingdom expansion.

30. What immediate conflict was caused by applying popular sovereignty in Kansas after 1854?

    Bleeding Kansas (violent clashes between pro- and antislavery settlers). Competing groups rushed in to influence the slavery vote violently.

31. What was the most direct cause of the Nullification Crisis of 1832–1833?

    South Carolina's rejection of high protective tariffs as unconstitutional. Tariffs hurt Southern exports, sparking states' rights crisis.

32. What earlier compromise did the Kansas-Nebraska Act effectively repeal?

    The Missouri Compromise line of $36^\circ 30'$. Allowed slavery north of the line where it was previously banned.

33. Identify the main cause of the Panic of 1837 in the Jacksonian era.

    Speculation and unstable credit after banking and currency disruptions. Jackson's bank war created unstable paper money system.

34. What was the most direct cause of the formation of the Confederate States of America?

    Southern secession after Abraham Lincoln's election in 1860. South saw Republican victory as threat to slavery's survival.

35. What was the primary cause of the Emancipation Proclamation being issued in 1863?

    A wartime strategy to weaken the Confederacy and deter foreign support. Military necessity and diplomatic strategy drove Lincoln's decision.

36. What event in 1859 most directly increased Southern fears of a slave rebellion?

    John Brown's raid on Harpers Ferry. Brown's attempt to arm slaves confirmed Southern worst fears.

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