1. Nat Turner’s Rebellion (1831) – Slave rebellion in Virginia led by Nat Turner; resulted in harsher slave laws.
2. Manifest Destiny – Belief that the U.S. was destined to expand westward; led to territorial expansion and conflicts like the Mexican-American War.
3. Texas Annexation (1845) – Texas joined the U.S., leading to tensions with Mexico and the Mexican-American War.
4. Oregon Territory (1846) – Settled by a treaty with Britain, establishing the U.S.-Canada border at the 49th parallel.
5. Mexican Cession (1848) – Land gained from Mexico after the Mexican-American War (Treaty of Guadalupe Hidalgo); intensified the slavery debate.
6. Wilmot Proviso (1846) – Proposed to ban slavery in Mexican Cession territory; failed but heightened tensions.
7. Crittenden Compromise (1860) – Last attempt to prevent the Civil War by allowing slavery below the 36°30′ line; failed.
Growing Sectional Tensions & Conflicts
8. Bleeding Kansas (1854-1859) – Violent conflict over slavery in Kansas due to popular sovereignty; foreshadowed the Civil War.
9. John Brown’s Raid (1859) – Attempt to start a slave rebellion at Harpers Ferry; Brown was executed, becoming a martyr for abolitionists.
10. Compromise of 1850 – Admitted California as a free state, strengthened the Fugitive Slave Act, and allowed popular sovereignty in some territories.
11. Sectionalism – Growing division between North and South over slavery, economy, and politics; led to the Civil War.
12. Ostend Manifesto (1854) – Secret plan to buy or take Cuba from Spain; abandoned after public backlash.
13. Kansas-Nebraska Act (1854) – Allowed popular sovereignty in Kansas and Nebraska; repealed the Missouri Compromise and led to Bleeding Kansas.
14. Popular Sovereignty – Idea that territories should vote on slavery; led to violence in Kansas.
Political Figures & Movements
15. Stephen Douglas – Senator who promoted popular sovereignty and debated Lincoln; his Kansas-Nebraska Act increased sectional tensions.
16. Abraham Lincoln – 16th U.S. president who led the Union during the Civil War and issued the Emancipation Proclamation.
17. Lincoln-Douglas Debates (1858) – Debates over slavery in territories; helped Lincoln gain national recognition.
18. Fugitive Slave Act (1850) – Required the return of escaped slaves; angered the North and strengthened the abolition movement.
19. Uncle Tom’s Cabin (1852) – Anti-slavery novel by Harriet Beecher Stowe; increased Northern opposition to slavery.
20. Harriet Beecher Stowe – Author of Uncle Tom’s Cabin, which influenced anti-slavery sentiment.
21. Dred Scott Decision (1857) – Supreme Court ruled that African Americans were not citizens and Congress couldn’t ban slavery in territories; fueled sectional tensions.
Political Parties & Leaders
22. Whig Party – Political party opposed to Andrew Jackson; collapsed over the slavery issue.
23. Free Soil Party – Opposed slavery’s expansion into the western territories; later absorbed into the Republican Party.
24. Constitutional Union Party (1860) – Tried to avoid secession by focusing on preserving the Union; had little impact.
25. Democratic Party – Dominated by pro-slavery factions in the South before the Civil War.
26. Know-Nothing Party – Anti-immigrant, anti-Catholic party that declined in the 1850s.
27. Republican Party (1854) – Founded to oppose slavery’s expansion; Abraham Lincoln became its first successful presidential candidate.
Abolitionists & Secessionists
28. Edmund Ruffin – Southern secessionist who fired the first shot at Fort Sumter.
29. Sojourner Truth – Former slave and abolitionist who spoke for women’s rights and the end of slavery.
30. Harriet Tubman – Led escaped slaves to freedom via the Underground Railroad.
31. Henry Highland Garnet – Black abolitionist who called for slave rebellion against Southern masters.
Civil War & Political Figures
32. Secession (1860-1861) – Southern states left the Union after Lincoln’s election, leading to the Civil War.
33. Confederate States – Southern states that seceded; formed the Confederacy under Jefferson Davis.
34. Union States – Northern states that remained in the U.S. and fought to preserve the Union.
35. Border States – Slave states that stayed in the Union (Missouri, Kentucky, Maryland, Delaware, West Virginia).
Key Political Leaders
36. Henry Clay – The “Great Compromiser”; crafted the Missouri Compromise, Compromise of 1850, and other key agreements.
37. Martin Van Buren – 8th U.S. president and Free Soil Party candidate in 1848.
38. William Henry Harrison – 9th U.S. president; died one month into office.
39. John Tyler – 10th U.S. president; supported Texas annexation.
40. John Quincy Adams – 6th U.S. president; later fought against slavery in Congress.
41. James K. Polk – 11th U.S. president; led expansion efforts (Oregon, Texas, Mexican Cession).
42. Zachary Taylor – 12th U.S. president; war hero in the Mexican-American War; opposed the expansion of slavery.
Violence in Congress
43.Sumner-Brooks Affair (1856) – Senator Charles Sumner was beaten by Representative Preston Brooks over an anti-slavery speech; deepened sectional tensions.