Louisiana Purchase: 1803 land deal doubling U.S. territory; bought from France.
Manifest Destiny: Belief that the U.S. was destined to expand westward.
Mexican-American War (1846–1848): War between U.S. and Mexico; ended with Treaty of Guadalupe Hidalgo.
James K. Polk: President who strongly supported Manifest Destiny; led U.S. in Mexican-American War.
Steven Austin: Led American settlers into Texas under Mexican rule.
Gold Rush (1849): Mass migration to California after discovery of gold.
Dred Scott Case (1857): Supreme Court ruled enslaved people were property, not citizens.
Popular Sovereignty: Idea that settlers in territories could vote on slavery.
Compromise of 1850: Admitted California as free state; stricter Fugitive Slave Law.
Wilmot Proviso: Proposed ban on slavery in new territories (failed).
Kansas-Nebraska Act (1854): Allowed popular sovereignty in those territories → led to Bleeding Kansas.
Bleeding Kansas: Violent conflict between pro- and anti-slavery settlers.
Uncle Tom’s Cabin (1852): Harriet Beecher Stowe’s novel, increased anti-slavery sentiment in North.
Abolitionists Movement: Wanted to end slavery.
Frederick Douglass: Former slave, powerful speaker and writer.
William Lloyd Garrison: Published The Liberator; radical abolitionist.
Elijah P. Lovejoy: Murdered for anti-slavery views.
Wendell Phillips: Orator and Garrison ally.
John Brown: Radical abolitionist; led raid on Harper’s Ferry.
Underground Railroad: Secret network to help enslaved people escape.
King Cotton: Term showing South’s economic reliance on cotton and slavery.
Secession: Southern states left the Union after Lincoln’s election (1860).
Fort McHenry: War of 1812 battle that inspired the national anthem.
Battle of New Orleans: Major victory led by Andrew Jackson in 1815.
Bull Run: First major battle of Civil War; Confederate victory.
Antietam: Bloodiest single-day battle; led to Emancipation Proclamation.
Gettysburg: Turning point; Union victory in 1863.
Battle of Vicksburg: Gave Union control of Mississippi River.
Total War: Strategy used by General William Tecumseh Sherman to destroy South's will to fight.
General Ulysses S. Grant: Top Union general.
General Robert E. Lee: Led Confederate army.
General George McClellan: Cautious Union general; ran against Lincoln in 1864.
Emancipation Proclamation (1863): Freed enslaved people in rebelling states.
Federal Conscription: First military draft; led to riots in the North.
Andrew Johnson: Took over after Lincoln’s assassination; lenient on South.
Black Codes: Laws to limit rights of freed Black Americans.
13th Amendment: Abolished slavery.
14th Amendment: Granted citizenship to all born in U.S.
15th Amendment: Voting rights can’t be denied based on race.
Ku Klux Klan: White supremacist group opposing Reconstruction.
Freedmen’s Bureau: Helped formerly enslaved people with education, food, jobs.
Deism: Enlightenment belief in God as a distant creator.
Second Great Awakening: Religious revival inspiring reform movements.
Charles Finney: Evangelist and leader of revivalism.
Mormonism: Religious movement founded by Joseph Smith; moved to Utah.
Horace Mann: Education reformer; pushed for public schooling.
Henry Clay: "Great Compromiser"; helped with Missouri Compromise, Compromise of 1850.
Daniel Webster: Prominent politician; supported Union over state’s rights.
State’s Rights: Belief that states had authority over federal laws.
Federalism: Balance of power between national and state governments.
John Marshall: Supreme Court chief justice; strengthened federal power.
Election of 1824: "Corrupt bargain" between Adams and Clay.
Andrew Jackson:
Spoils system: Gave jobs to political supporters.
Bank Policies: Opposed the national bank; moved funds to state banks.
Indian Removal Policy: Led to forced relocation of Native tribes → Trail of Tears.
Hudson River School: Art movement focused on American landscapes.
Transcendentalism: Belief in individualism, nature, and self-reliance.
"The American Scholar" – Emerson’s call for intellectual independence.
The Scarlet Letter – Hawthorne’s novel about sin and society.
"The Fall of the House of Usher" – Poe’s gothic tale.
Little Women – Alcott’s novel about domestic life and morality.
Utopian Communities: Experimental societies aiming for perfection (e.g., Brook Farm).
Cult of Domesticity: Belief that women’s role was in the home.
Transcontinental Railroad: Linked East and West coasts; fueled expansion.
Cyrus McCormick: Invented mechanical reaper (boosted farming).
Elias Howe: Invented sewing machine.
Robert Fulton: Invented steamboat.
Samuel Morse: Invented telegraph and Morse code.
Noah Webster: Created American dictionary; influenced language and education.
Amistad Case: Enslaved Africans took over a ship; case reached Supreme Court; John Quincy Adams defended them.
John Quincy Adams: 6th president; also helped in the Amistad Case.