Quick review

AP United States History Quick Review

High-impact topic boxes for a focused review session before you take the practice test.

1. Native American Societies Before European Contact

The big idea

Pre-Columbian North America held hundreds of distinct, complex societies shaped by regional geography and climate, not a single unified culture.

Must know

Cahokia (Mississippian mound-building city near modern St. Louis, peak c.1100--1200s, largest pre-Columbian settlement north of Mexico); Pueblo peoples of the Southwest (irrigation agriculture, adobe architecture); Great Plains societies (nomadic, bison-dependent, pre-horse); Eastern Woodlands peoples including the Haudenosaunee/Iroquois Confederacy (matrilineal clans, ``Three Sisters'' farming of corn, beans, squash).

Don't confuse

Sedentary, irrigation-based Pueblo societies vs.\ nomadic, bison-hunting Great Plains societies -- horse-mounted Plains culture only emerged after European contact.

Exam trap

Treating ``Native Americans'' as one monolithic culture; correct answers stress regional diversity and environmental adaptation across hundreds of nations.

5-second recall

Cahokia = mounds $arrow$ Pueblo = irrigation $arrow$ Plains = bison (pre-horse) $arrow$ Iroquois = Three Sisters + confederacy.

2. The Columbian Exchange & Early Spanish Colonization

The big idea

Columbus's 1492 voyage triggered the Columbian Exchange, a transatlantic transfer of crops, animals, people, and disease that devastated Native populations and reorganized global labor systems.

Must know

Columbian Exchange: corn/potatoes to Europe, wheat/horses/cattle to the Americas; smallpox and other ``virgin soil epidemics'' killed up to 90% of some Native populations; Spanish encomienda system forced Native labor/tribute; conquistadors Hern\'an Cort\'es (Aztec Empire, 1519--21) and Francisco Pizarro (Inca Empire, 1532--33); Bartolom\'e de las Casas criticized Spanish treatment of Native peoples.

Don't confuse

Encomienda (forced labor/tribute extracted from conquered Native peoples) vs.\ the African chattel slavery system that expanded later as Native populations collapsed from disease.

Exam trap

Assuming European military technology alone explains conquest -- disease was the primary demographic killer, far more than warfare.

5-second recall

1492 $arrow$ Columbian Exchange $arrow$ disease kills Natives $arrow$ encomienda $arrow$ African slave trade expands to replace lost labor.

3. English Colonial Regions

The big idea

The three English colonial regions developed distinct economies, societies, and religious cultures shaped by geography and founding purpose.

Must know

Jamestown (1607, first permanent English colony, Virginia Company, tobacco economy under John Rolfe); Plymouth (1620, Separatist Pilgrims, Mayflower Compact); Massachusetts Bay (1630, Puritans, John Winthrop's ``City upon a Hill''); Middle colonies (Penn's Quaker Pennsylvania -- religious/ethnic diversity, breadbasket economy); Southern colonies (plantation agriculture, headright system, growing reliance on enslaved labor after 1676).

Don't confuse

Separatist Pilgrims (Plymouth -- wanted to leave the Church of England entirely) vs.\ Puritans (Massachusetts Bay -- wanted to ``purify'' the Church of England from within).

Exam trap

Assuming New England colonies were founded for religious freedom for all; Puritans enforced strict conformity (banishment of Roger Williams and Anne Hutchinson).

5-second recall

Jamestown 1607 tobacco; Plymouth 1620 Mayflower Compact; Mass.\ Bay 1630 ``City upon a Hill''; Penn's PA = diversity/tolerance.

4. Colonial Economies & Labor Systems

The big idea

Colonial labor shifted from indentured servitude toward race-based chattel slavery, driven by economic demand and hardening racial hierarchies after events like Bacon's Rebellion.

Must know

Triangular trade linking colonies, Africa, and the West Indies (Middle Passage); Navigation Acts (1651+) enforcing mercantilism; Bacon's Rebellion (1676, Virginia) accelerated the shift from indentured servants to enslaved Africans; slave codes formalized racial slavery; Chesapeake/Southern plantation economies (tobacco, rice, indigo) vs.\ New England's shipping/fishing/small-farm economy.

Don't confuse

Indentured servitude (temporary, contract-based, any ethnicity) vs.\ chattel slavery (permanent, hereditary, race-based, no legal personhood).

Exam trap

Dating the full transition to race-based slavery too early -- it hardened gradually through the late 1600s, with Bacon's Rebellion (1676) as the key turning point.

5-second recall

Mercantilism $arrow$ Navigation Acts; Bacon's Rebellion 1676 $arrow$ indentured servants replaced by enslaved Africans.

5. The Great Awakening & Enlightenment in the Colonies

The big idea

The Great Awakening (emotional religious revivalism) and the Enlightenment (reason-based political philosophy) reshaped colonial thought and prepared the ideological ground for revolution.

Must know

First Great Awakening (1730s--40s): Jonathan Edwards (``Sinners in the Hands of an Angry God''), George Whitefield's traveling revivals, growth of Baptists/Methodists and religious pluralism; Enlightenment thinker John Locke -- natural rights (life, liberty, property), social contract, consent of the governed; ``salutary neglect'' (Britain's lax pre-1763 enforcement of trade laws) allowed colonial self-governance to grow.

Don't confuse

The Great Awakening (religious, emotional, egalitarian revivalism) vs.\ the Enlightenment (secular, rational, focused on natural rights and government).

Exam trap

Locke's natural-rights philosophy is the direct source tested for the Declaration of Independence's ``life, liberty, and the pursuit of happiness'' -- don't misattribute it to Rousseau or Montesquieu.

5-second recall

Great Awakening = emotion/religion; Enlightenment = reason/Locke/natural rights $arrow$ both erode deference to traditional authority.

6. The French and Indian War & Its Aftermath

The big idea

The French and Indian War (1754--63) removed France from North America but left Britain deeply in debt, prompting new taxation policies that ignited colonial resistance.

Must know

French and Indian War / Seven Years' War (1754--63); Albany Congress (1754) and Franklin's Albany Plan of Union (rejected); Treaty of Paris (1763) -- France cedes Canada to Britain; Proclamation of 1763 (banned colonial settlement west of the Appalachians); Pontiac's Rebellion.

Don't confuse

The Proclamation of 1763 (British policy restricting westward settlement) vs.\ the later Northwest Ordinance of 1787 (U.S.\ policy organizing western territories).

Exam trap

The Proclamation of 1763 is tested as a key colonial grievance and turning point even though it predates the ``Intolerable Acts'' -- students often skip past it.

5-second recall

French & Indian War 1754--63 $arrow$ Britain wins land, loses money $arrow$ Proclamation of 1763 $arrow$ colonial anger begins.

7. The Road to Revolution: Taxation & Acts

The big idea

A series of British revenue acts after 1763, combined with the colonial ideology of ``no taxation without representation,'' escalated tension into organized resistance and armed conflict.

Must know

Sugar Act (1764); Stamp Act (1765, first direct tax, Stamp Act Congress); Townshend Acts (1767, taxed imports) $arrow$ Boston Massacre (1770); Tea Act (1773) $arrow$ Boston Tea Party (Dec.\ 1773) $arrow$ Coercive/Intolerable Acts (1774) $arrow$ First Continental Congress (1774); Committees of Correspondence and the Sons of Liberty organized resistance.

Don't confuse

The Stamp Act (direct tax on printed materials, repealed 1766) vs.\ the Townshend Acts (indirect taxes on imported goods like tea, glass, paper).

Exam trap

Event order matters: Boston Massacre (1770) came before the Tea Party (1773), which came before the Intolerable Acts and First Continental Congress (1774).

5-second recall

Stamp Act 1765 $arrow$ Townshend 1767 $arrow$ Boston Massacre 1770 $arrow$ Tea Party 1773 $arrow$ Intolerable Acts 1774 $arrow$ First Continental Congress.

8. The Declaration of Independence & the Revolutionary War

The big idea

The Declaration of Independence (1776) formalized Enlightenment justifications for separation from Britain, while the war's outcome depended heavily on foreign alliance and unconventional strategy.

Must know

Second Continental Congress (1775); Common Sense (Thomas Paine, Jan.\ 1776) rallied public support for independence; Declaration of Independence (July 4, 1776, drafted by Jefferson, rooted in Locke's natural rights); Battle of Saratoga (1777) -- convinced France to formally ally (1778); Valley Forge winter (1777--78); Battle of Yorktown (1781) -- Cornwallis surrenders; Treaty of Paris (1783) recognizes U.S.\ independence.

Don't confuse

Treaty of Paris of 1763 (ended the French and Indian War) vs.\ Treaty of Paris of 1783 (ended the Revolutionary War, recognized American independence).

Exam trap

Saratoga (1777), not Yorktown, is tested as the diplomatic turning point because it triggered French intervention; Yorktown (1781) is the military end.

5-second recall

Common Sense 1776 $arrow$ Declaration July 4, 1776 $arrow$ Saratoga 1777 (France allies) $arrow$ Yorktown 1781 $arrow$ Treaty of Paris 1783.

9. The Articles of Confederation & Constitutional Convention

The big idea

The weak Articles of Confederation government's failures, especially Shays' Rebellion, convinced leaders to replace it with a stronger federal Constitution built on compromise.

Must know

Articles of Confederation (1781--89): no executive, no power to tax or regulate commerce, unanimous consent to amend; Northwest Ordinance (1787) organized western territories and banned slavery there; Shays' Rebellion (1786--87, Massachusetts farmers) exposed government weakness; Constitutional Convention (Philadelphia, 1787); Great/Connecticut Compromise (bicameral legislature); Three-Fifths Compromise (enslaved people counted as three-fifths for representation/taxation); Federalists (Madison, Hamilton, Jay -- The Federalist Papers) vs.\ Anti-Federalists (demanded a Bill of Rights).

Don't confuse

Virginia Plan (representation by population, favored large states) vs.\ New Jersey Plan (equal representation, favored small states) -- the Great Compromise merged both.

Exam trap

The Bill of Rights (1791) was the price of ratification demanded by Anti-Federalists, not part of the original 1787 Constitution.

5-second recall

Shays' Rebellion $arrow$ Constitutional Convention 1787 $arrow$ Great Compromise + Three-Fifths Compromise $arrow$ Federalists win ratification $arrow$ Bill of Rights 1791.

10. Washington's Administration & Early Republic Politics

The big idea

Washington's presidency set key precedents while deep disagreements over federal power and foreign policy split his own cabinet into the first political parties.

Must know

Hamilton's financial plan (national bank, assumption of state debts, protective tariffs) vs.\ Jefferson/Madison's strict-constructionist opposition; Federalist Party (Hamilton) vs.\ Democratic-Republican Party (Jefferson); Whiskey Rebellion (1794) -- Washington enforces federal authority; Washington's Farewell Address (1796) warned against permanent foreign alliances and political factions; XYZ Affair and Quasi-War with France under Adams; Alien and Sedition Acts (1798) prompted the Kentucky and Virginia Resolutions.

Don't confuse

``Loose construction'' (Hamilton -- implied powers justify the national bank) vs.\ ``strict construction'' (Jefferson -- government limited to enumerated powers).

Exam trap

The Kentucky/Virginia Resolutions (1798) are tested as an early states'-rights/nullification argument, a precursor to later sectional conflict.

5-second recall

Hamilton = bank/loose construction/Federalist; Jefferson = agrarian/strict construction/Dem-Republican; Whiskey Rebellion 1794 = federal power enforced.

11. Jeffersonian Democracy & the Louisiana Purchase

The big idea

Jefferson's presidency balanced strict-constructionist ideals against pragmatic uses of federal power, most notably the Louisiana Purchase, which doubled U.S.\ territory.

Must know

Election of 1800 (``Revolution of 1800,'' first peaceful transfer of power between parties); Louisiana Purchase (1803, from Napoleonic France, \$15 million, doubled U.S.\ size); Lewis and Clark Expedition (1804--06); Marbury v.\ Madison (1803, Chief Justice Marshall, established judicial review); Embargo Act (1807) -- failed attempt to avoid war, hurt the U.S.\ economy.

Don't confuse

Marbury v.\ Madison (1803, established judicial review) vs.\ McCulloch v.\ Maryland (1819, upheld the national bank/implied powers) -- both Marshall Court cases, different principles.

Exam trap

The Louisiana Purchase contradicted Jefferson's own strict-constructionist principles (the Constitution doesn't explicitly authorize land acquisition) -- tested as pragmatism over ideology.

5-second recall

1803 Louisiana Purchase (doubles the nation) + Marbury v.\ Madison (judicial review) = Jefferson's paradox.

12. The War of 1812 & the Market Revolution

The big idea

The War of 1812 boosted American nationalism, ushering in the ``Era of Good Feelings'' and a Market Revolution that transformed the economy.

Must know

War of 1812 causes: impressment, trade restrictions, British support of Native resistance (Tecumseh); Treaty of Ghent (1814) ends the war, status quo; Battle of New Orleans (Jan.\ 1815, Andrew Jackson, fought after the treaty was signed); Hartford Convention (1814) discredited the Federalist Party; American System (Henry Clay: national bank, protective tariffs, internal improvements); Market Revolution (Erie Canal 1825, Lowell textile mills); Monroe Doctrine (1823, warned Europe against colonization in the Americas).

Don't confuse

The ``Era of Good Feelings'' (surface-level political unity under Monroe) vs.\ real underlying sectional tension (Missouri Compromise, 1820).

Exam trap

The Battle of New Orleans occurred after the Treaty of Ghent was already signed (news traveled slowly) -- it did not win the war.

5-second recall

War of 1812 $arrow$ nationalism $arrow$ American System + Market Revolution + Monroe Doctrine 1823 $arrow$ Era of Good Feelings (surface calm).

13. Jacksonian Democracy & Indian Removal

The big idea

Jacksonian Democracy expanded political participation for white men while intensifying the dispossession and forced removal of Native Americans.

Must know

Election of 1824 ``Corrupt Bargain'' fuels Jackson's 1828 win; expansion of white male suffrage; spoils system; Indian Removal Act (1830); Worcester v.\ Georgia (1832, ruled for Cherokee sovereignty, Jackson's administration did not enforce it); Trail of Tears (1838, forced Cherokee removal, thousands died); Nullification Crisis (1832--33, South Carolina/Calhoun vs.\ tariffs, Jackson's Force Bill); Bank War (Jackson vetoes recharter of the Second Bank of the U.S.).

Don't confuse

The Nullification Crisis (1832--33, over tariffs, South Carolina claims the right to void federal law) vs.\ the later secession crisis (1860--61, over slavery, states leave the Union).

Exam trap

Worcester v.\ Georgia (1832) ruled for Cherokee sovereignty, but the Jackson administration's non-enforcement led directly to the Trail of Tears.

5-second recall

Jackson = spoils system + Indian Removal Act 1830 + Trail of Tears 1838 + Bank War + Nullification Crisis 1832--33.

14. The Second Great Awakening & Antebellum Reform

The big idea

The Second Great Awakening's religious revivalism inspired a wave of antebellum reform movements aimed at perfecting American society.

Must know

Second Great Awakening (early--mid 1800s, Charles Finney, personal salvation/perfectionism); abolitionism (William Lloyd Garrison's The Liberator, 1831; Frederick Douglass; Underground Railroad, Harriet Tubman); women's rights (Seneca Falls Convention, 1848, Declaration of Sentiments, Elizabeth Cady Stanton); temperance movement; education reform (Horace Mann, public schools); utopian communities (Oneida, Brook Farm); asylum/prison reform (Dorothea Dix).

Don't confuse

Garrisonian abolitionism (immediate, uncompensated emancipation) vs.\ earlier colonization efforts (American Colonization Society -- resettling free Black Americans in Liberia).

Exam trap

Seneca Falls's Declaration of Sentiments (1848) deliberately echoes the Declaration of Independence -- the exam tests recognition of this parallel structure.

5-second recall

2nd Great Awakening $arrow$ reform: abolition (Garrison 1831) + women's rights (Seneca Falls 1848) + temperance + education (Mann).

15. Manifest Destiny & Westward Expansion

The big idea

The ideology of Manifest Destiny drove aggressive U.S.\ territorial expansion in the 1840s, reigniting the sectional debate over slavery's expansion into new territories.

Must know

Manifest Destiny (term coined 1845); Texas annexation (1845, after 1836 independence from Mexico); Mexican-American War (1846--48); Treaty of Guadalupe Hidalgo (1848, Mexican Cession -- CA, NV, UT, AZ, NM); Oregon Treaty (1846, 49th parallel); Wilmot Proviso (1846, proposed banning slavery in the Mexican Cession, failed but intensified sectional debate); California Gold Rush (1849).

Don't confuse

The Mexican Cession (1848, land gained via war/treaty) vs.\ the Louisiana Purchase (1803, land purchased from France).

Exam trap

The Wilmot Proviso never passed but is heavily tested as the moment slavery's expansion became the dominant, unavoidable national political issue.

5-second recall

Manifest Destiny $arrow$ Texas 1845 $arrow$ Mexican War 1846--48 $arrow$ Guadalupe Hidalgo $arrow$ Mexican Cession $arrow$ Wilmot Proviso ignites slavery debate.

16. Sectionalism & the Compromises of 1820, 1850, and 1854

The big idea

Successive compromises over slavery's expansion into new territories only temporarily delayed -- and ultimately worsened -- the sectional crisis.

Must know

Missouri Compromise (1820, Missouri slave/Maine free, $36^ 30'$ line); Compromise of 1850 (California free state, popular sovereignty in Utah/New Mexico, stronger Fugitive Slave Act, banned the slave trade in D.C.); Uncle Tom's Cabin (Harriet Beecher Stowe, 1852) inflamed Northern anti-slavery sentiment; Kansas-Nebraska Act (1854, Stephen Douglas, popular sovereignty repeals the $36^ 30'$ line) $arrow$ ``Bleeding Kansas''; birth of the Republican Party (1854).

Don't confuse

``Popular sovereignty'' (letting territorial settlers vote on slavery) vs.\ ``free soil'' (opposing slavery's expansion into territories outright).

Exam trap

The Fugitive Slave Act of 1850 is tested as the provision that most radicalized Northern public opinion, not the Kansas-Nebraska Act.

5-second recall

1820 Missouri Compromise ($36^ 30'$) $arrow$ 1850 Compromise (Fugitive Slave Act) $arrow$ 1854 Kansas-Nebraska (popular sovereignty) $arrow$ Bleeding Kansas.

17. The Road to Civil War

The big idea

A cascade of judicial, violent, and electoral crises in the late 1850s convinced the South that Republican control of the federal government threatened slavery's survival, leading to secession.

Must know

Dred Scott v.\ Sandford (1857, enslaved people not citizens, Congress cannot ban slavery in territories); Lincoln-Douglas Debates (1858); John Brown's Raid on Harpers Ferry (1859); Election of 1860 (Lincoln wins without a single Southern electoral vote); South Carolina secedes first (Dec.\ 1860), followed by six more states forming the Confederate States of America (Feb.\ 1861, Jefferson Davis president); Fort Sumter (April 1861) -- war begins.

Don't confuse

The Dred Scott decision (1857, judicial ruling on slavery in the territories) vs.\ the Compromise of 1850/Kansas-Nebraska Act (legislative compromises) -- Dred Scott made such legislative compromise essentially moot.

Exam trap

Lincoln's election alone (not any enacted policy) triggered secession; he had taken no action against slavery where it already existed when the Deep South seceded.

5-second recall

Dred Scott 1857 $arrow$ Lincoln-Douglas debates 1858 $arrow$ John Brown 1859 $arrow$ Lincoln elected 1860 $arrow$ secession $arrow$ Fort Sumter April 1861.

18. The Civil War

The big idea

The Civil War evolved from a war to preserve the Union into a war to end slavery, with Union industrial and manpower advantages ultimately deciding the outcome.

Must know

Anaconda Plan (Union strategy -- blockade, control the Mississippi, split the Confederacy); Battle of Antietam (Sept.\ 1862, bloodiest single day, gave Lincoln political opening); Emancipation Proclamation (Jan.\ 1, 1863, freed enslaved people in Confederate states, allowed Black enlistment -- 54th Massachusetts Regiment); Battle of Gettysburg (July 1863, turning point) and Vicksburg (July 1863, Union controls the Mississippi); Sherman's March to the Sea (1864, total war); Lee's surrender at Appomattox Court House (April 1865); Lincoln assassinated (April 1865).

Don't confuse

The Emancipation Proclamation (1863, executive war measure, freed enslaved people only in Confederate/rebelling states) vs.\ the 13th Amendment (1865, constitutionally abolished slavery everywhere).

Exam trap

The Emancipation Proclamation did not immediately free all enslaved people -- it exempted Union border states and Union-occupied areas.

5-second recall

Antietam 1862 $arrow$ Emancipation Proclamation Jan.\ 1863 $arrow$ Gettysburg/Vicksburg July 1863 (turning point) $arrow$ Appomattox April 1865.

19. Reconstruction Plans & the Reconstruction Amendments

The big idea

Reconstruction attempted to rebuild the South and integrate formerly enslaved people as citizens, producing landmark constitutional amendments amid fierce political and social resistance.

Must know

Lincoln's Ten Percent Plan vs.\ Radical Republicans' Wade-Davis Bill; Freedmen's Bureau (1865); 13th Amendment (1865, abolished slavery); Andrew Johnson's lenient Reconstruction clashes with Congress; Black Codes; Civil Rights Act of 1866; 14th Amendment (1868, citizenship, equal protection); Reconstruction Acts (1867, military districts); Johnson's impeachment (1868, survived by one vote); 15th Amendment (1870, Black male suffrage); Ku Klux Klan violence and intimidation.

Don't confuse

14th Amendment (birthright citizenship, equal protection, due process) vs.\ 15th Amendment (prohibits denying voting rights based on race).

Exam trap

``Radical Reconstruction'' (1867 Reconstruction Acts onward) is more punitive and thorough than Lincoln's or Johnson's earlier lenient plans -- don't conflate presidential and congressional Reconstruction.

5-second recall

13th (1865, no slavery) $arrow$ 14th (1868, citizenship/equal protection) $arrow$ 15th (1870, Black male suffrage) = the Reconstruction Amendments.

20. The End of Reconstruction & Its Legacy

The big idea

Reconstruction ended with the Compromise of 1877, allowing Southern white ``Redeemer'' governments to reclaim political control and dismantle Black civil rights for nearly a century.

Must know

Compromise of 1877 (disputed Hayes-Tilden election of 1876 resolved: Hayes becomes president, federal troops withdrawn from the South); rise of Redeemer governments; sharecropping and the crop-lien system re-subordinated freedpeople economically; Jim Crow segregation laws; Plessy v.\ Ferguson (1896, ``separate but equal''); KKK terror and lynching enforced white supremacy.

Don't confuse

Sharecropping (freedpeople farm land for a share of the crop, often trapped in debt) vs.\ the Freedmen's Bureau's unfulfilled ``40 acres and a mule'' land-redistribution promise.

Exam trap

Reconstruction's ``end date'' of 1877 is tested precisely via the Compromise of 1877/troop withdrawal, not any single civil-rights rollback event.

5-second recall

Compromise of 1877 $arrow$ troops withdrawn $arrow$ Redeemers $arrow$ sharecropping + Jim Crow $arrow$ Plessy v.\ Ferguson 1896 ``separate but equal.''

21. Industrialization & Big Business

The big idea

Rapid post-Civil War industrialization created unprecedented corporate wealth and monopolistic power, prompting debates over regulation that define the Gilded Age.

Must know

Second Industrial Revolution: steel (Andrew Carnegie, Bessemer process), oil (John D.\ Rockefeller, Standard Oil), transcontinental railroad (completed 1869); trusts, horizontal and vertical integration; Social Darwinism (Herbert Spencer, ``survival of the fittest'' applied to wealth) vs.\ the Gospel of Wealth (Carnegie's philanthropic obligation of the rich); Sherman Antitrust Act (1890, initially weakly enforced).

Don't confuse

Horizontal integration (buying out competitors in the same industry -- Rockefeller/Standard Oil) vs.\ vertical integration (controlling every stage of production -- Carnegie/U.S.\ Steel).

Exam trap

The Sherman Antitrust Act (1890) was largely ineffective at first, used more often against labor unions than trusts during the 1890s.

5-second recall

Carnegie = steel/vertical integration/Gospel of Wealth; Rockefeller = oil/horizontal integration; Sherman Antitrust Act 1890 = weak initially.

22. The Labor Movement & Major Strikes

The big idea

Industrial workers organized into unions to counter dangerous conditions, long hours, and low pay, but strikes were frequently met with violent suppression by business and government.

Must know

Knights of Labor (Terence Powderly, broad/inclusive membership) vs.\ American Federation of Labor (Samuel Gompers, skilled workers, ``bread and butter'' unionism); Great Railroad Strike (1877); Haymarket Affair (1886, Chicago, discredited the Knights of Labor); Homestead Strike (1892, Carnegie Steel, Pinkerton agents); Pullman Strike (1894, Eugene Debs, American Railway Union, federal troops intervene).

Don't confuse

Knights of Labor (unskilled and skilled workers, women, Black workers included; declined after Haymarket) vs.\ AFL (skilled craft workers only; became the dominant union).

Exam trap

The Haymarket Affair (1886) discredited the broader labor movement in public opinion by linking unions to anarchist violence, even though the bomber was never identified.

5-second recall

Knights of Labor $arrow$ Haymarket 1886 (decline) $arrow$ AFL (Gompers) rises; Homestead 1892 + Pullman 1894 = violent strike suppression.

23. Immigration & Urbanization

The big idea

Massive ``New Immigration'' from Southern and Eastern Europe fueled rapid, chaotic urban growth, provoking both cultural adaptation and nativist backlash.

Must know

``New Immigrants'' (Italy, Poland, Russia, Austria-Hungary -- largely Catholic/Jewish) vs.\ earlier ``Old Immigrants'' (Northern/Western Europe -- largely Protestant); Ellis Island (opened 1892, main European entry point) and Angel Island (main Asian entry/detention point); urban political machines (Tammany Hall, Boss Tweed); settlement house movement (Jane Addams, Hull House, 1889); Chinese Exclusion Act (1882, first major U.S.\ law restricting immigration by nationality).

Don't confuse

Ellis Island (primary entry point for European immigrants) vs.\ Angel Island (primary entry/detention point for Asian immigrants, harsher screening under the Chinese Exclusion Act).

Exam trap

The Chinese Exclusion Act (1882) is the first U.S.\ law to restrict immigration based specifically on race/nationality -- a frequently cited landmark.

5-second recall

New immigrants (S/E Europe) $arrow$ Ellis Island; Asian immigrants $arrow$ Angel Island + Chinese Exclusion Act 1882; political machines = Tammany Hall.

24. Populism & Agrarian Discontent

The big idea

Falling crop prices, debt, and railroad monopoly abuses drove Western and Southern farmers to organize politically through the Populist movement, demanding currency and structural reform.

Must know

The Grange (1860s--70s, farmer cooperatives); Farmers' Alliances; Populist (People's) Party founded 1892, Omaha Platform (free silver/bimetallism, graduated income tax, direct election of senators, government ownership of railroads); William Jennings Bryan's ``Cross of Gold'' speech (1896); Election of 1896 (Bryan loses to McKinley, effectively ends Populism as an independent force).

Don't confuse

Populism (agrarian, rural, favored inflationary free silver, 1890s) vs.\ later Progressivism (urban, middle-class, favored efficiency/regulation, 1900s--1910s).

Exam trap

``Free silver''/bimetallism is the Populists' signature demand to inflate currency and ease farm debt -- often confused with the gold standard favored by conservative Republicans/McKinley.

5-second recall

Grange $arrow$ Farmers' Alliances $arrow$ Populist Party 1892 (Omaha Platform) $arrow$ Bryan ``Cross of Gold'' 1896 $arrow$ loses to McKinley.

25. Gilded Age Politics

The big idea

Gilded Age national politics were dominated by patronage-driven party competition and a generally passive federal government reluctant to regulate the economy, reflecting laissez-faire ideology.

Must know

Term ``Gilded Age'' coined by Mark Twain (satirizing surface prosperity hiding corruption); Pendleton Civil Service Act (1883, merit-based federal hiring, passed after President Garfield's assassination); Interstate Commerce Act (1887, first federal regulation of railroads, weakly enforced); minimal federal economic regulation reflecting a laissez-faire consensus among both major parties.

Don't confuse

Pendleton Act (1883, reformed federal civil service/patronage) vs.\ Sherman Antitrust Act (1890, targeted business monopolies) -- both Gilded Age reforms, different targets.

Exam trap

Garfield's assassination (1881) by a disgruntled office-seeker is the direct catalyst for civil service reform (Pendleton Act, 1883) -- a cause-effect link students often miss.

5-second recall

Gilded Age = Twain's term; Garfield assassinated 1881 $arrow$ Pendleton Act 1883 (merit system); Interstate Commerce Act 1887 = first railroad regulation.

26. Progressive Era Reforms

The big idea

Progressive reformers responded to the excesses of industrialization and urbanization by pursuing government regulation, social justice, and expanded democracy at every level of government.

Must know

Muckrakers: Upton Sinclair's The Jungle $arrow$ Pure Food and Drug Act & Meat Inspection Act (1906); Ida Tarbell exposed Standard Oil; political reforms (initiative, referendum, recall, direct primary, 17th Amendment 1913); Theodore Roosevelt's ``Square Deal'' (trust-busting, consumer protection, conservation); Wilson's ``New Freedom'' (Federal Reserve Act 1913, Clayton Antitrust Act 1914, Federal Trade Commission 1914); 18th Amendment (1919, Prohibition) and 19th Amendment (1920, women's suffrage).

Don't confuse

Theodore Roosevelt's ``Square Deal'' (regulate big business, distinguish ``good'' vs.\ ``bad'' trusts) vs.\ Wilson's ``New Freedom'' (break up monopolies more aggressively, favor small-business competition).

Exam trap

The 16th (income tax), 17th (direct election of senators), 18th (Prohibition), and 19th (women's suffrage) Amendments all date 1913--1920 -- a commonly tested cluster students must keep straight by number and date.

5-second recall

16th income tax, 17th direct Senate election (1913); 18th Prohibition (1919); 19th women's suffrage (1920) = the Progressive Amendments.

27. American Imperialism

The big idea

The 1890s marked America's emergence as an overseas imperial power, driven by economic interests and strategic naval theory, most visibly in the Spanish-American War.

Must know

Alfred Thayer Mahan's naval-power theory; yellow journalism fueled war fervor; USS Maine explosion (1898) as war catalyst; Spanish-American War (1898); Treaty of Paris (1898) -- U.S.\ gains the Philippines, Puerto Rico, Guam; Philippine-American War (1899--1902); Platt Amendment (1901, limited Cuban sovereignty); Open Door Policy (1899, equal trade access to China); Roosevelt Corollary (1904, to the Monroe Doctrine); Panama Canal (completed 1914).

Don't confuse

The Monroe Doctrine (1823, warned Europe against colonizing the Americas) vs.\ the Roosevelt Corollary (1904, asserted the U.S.'s own right to intervene as an ``international police power'' in Latin America).

Exam trap

The Philippine annexation debate (anti-imperialists like Mark Twain vs.\ pro-imperialists) reflects a genuine domestic ideological split, not national consensus.

5-second recall

USS Maine 1898 $arrow$ Spanish-American War $arrow$ Treaty of Paris (PI, PR, Guam) $arrow$ Philippine-American War $arrow$ Open Door 1899 $arrow$ Roosevelt Corollary 1904.

28. World War I & Its Aftermath

The big idea

The U.S.\ abandoned neutrality to enter World War I in 1917, and the war's end reshaped American society at home while Wilson's idealistic peace vision failed in the Senate.

Must know

Neutrality (1914--17) shifts due to unrestricted submarine warfare (Lusitania, 1915) and the Zimmermann Telegram (1917); U.S.\ declares war April 1917; Espionage Act (1917) and Sedition Act (1918) restricted dissent (Schenck v.\ United States, 1919, ``clear and present danger''); Great Migration (Black Americans moving North for wartime jobs); Wilson's Fourteen Points (1918, self-determination, League of Nations); Treaty of Versailles (1919) -- Senate rejects it over League of Nations concerns (Article X), U.S.\ never joins; postwar Red Scare (1919--20, Palmer Raids).

Don't confuse

The Fourteen Points (Wilson's idealistic peace proposal) vs.\ the actual Treaty of Versailles (harsher, punished Germany, created the League without U.S.\ membership).

Exam trap

The Senate's rejection of Versailles was driven primarily by concerns over Article X (collective-security obligations threatening congressional war-declaring power), not simple isolationism alone.

5-second recall

Zimmermann Telegram + U-boat warfare $arrow$ war 1917 $arrow$ Fourteen Points $arrow$ Versailles rejected by Senate $arrow$ Red Scare 1919--20.

29. The 1920s & the Onset of the Great Depression

The big idea

The 1920s ``New Era'' of consumer prosperity and cultural change masked structural economic weaknesses that triggered the catastrophic Great Depression after the 1929 stock market crash.

Must know

Mass production/consumer culture (Ford's assembly line, installment buying); Harlem Renaissance (Langston Hughes, Zora Neale Hurston); nativism resurges (Immigration Act of 1924 -- national origins quotas; Sacco and Vanzetti; second KKK); Scopes Trial (1925); causes of the Depression (stock speculation/margin buying, uneven wealth distribution, overproduction, weak banking system); Stock Market Crash (Oct.\ 1929, ``Black Tuesday''); Hoover's limited response (Reconstruction Finance Corporation) seen as inadequate; Dust Bowl (mid-1930s).

Don't confuse

Causes of the 1929 crash (speculation, margin buying, overproduction) vs.\ Hoover's response to it (largely voluntarist, limited direct relief) -- tested as two separate items.

Exam trap

Hoover is frequently mistested as doing ``nothing''; he took some action (RFC, public works) but opposed direct federal relief to individuals.

5-second recall

1920s consumer boom + Harlem Renaissance $arrow$ Oct.\ 1929 crash $arrow$ causes (speculation/overproduction) $arrow$ Hoover's limited response $arrow$ Dust Bowl.

30. The New Deal

The big idea

Franklin Roosevelt's New Deal fundamentally expanded the federal government's role in the economy and social welfare through relief, recovery, and reform programs, despite constitutional and political opposition.

Must know

First Hundred Days (1933): Emergency Banking Act, Glass-Steagall Act (FDIC); Agricultural Adjustment Act (AAA); National Industrial Recovery Act (NIRA, struck down 1935 -- Schechter Poultry v.\ U.S.); Civilian Conservation Corps (CCC), Works Progress Administration (WPA); Social Security Act (1935); Wagner Act (1935, protected union organizing); Second New Deal (1935, more redistributive); FDR's Court-packing plan (1937, failed); critics Huey Long and Father Coughlin.

Don't confuse

First New Deal (1933, relief/recovery, worked with business, e.g.\ NIRA) vs.\ Second New Deal (1935, more pro-labor/redistributive, e.g.\ Social Security, Wagner Act).

Exam trap

The Supreme Court struck down the NIRA (1935) and AAA (1936) as unconstitutional, prompting FDR's unpopular 1937 Court-packing scheme -- a key cause-effect chain.

5-second recall

Hundred Days 1933 (banking, AAA, NIRA) $arrow$ programs struck down $arrow$ Second New Deal 1935 (Social Security, Wagner Act) $arrow$ Court-packing 1937 fails.

31. World War II

The big idea

World War II transformed the U.S.\ into a global military and economic superpower, fully mobilizing the home front while raising profound questions about civil liberties.

Must know

Lend-Lease Act (1941, aid to Britain/USSR); Pearl Harbor attack (Dec.\ 7, 1941) brings U.S.\ into the war; wartime production and ``Rosie the Riveter''; Japanese American internment (Executive Order 9066, 1942; Korematsu v.\ United States, 1944, upheld it); D-Day (June 1944); island-hopping in the Pacific; Manhattan Project and atomic bombs on Hiroshima and Nagasaki (Aug.\ 1945); Yalta Conference (Feb.\ 1945); United Nations founded (1945).

Don't confuse

The Lend-Lease Act (1941, U.S.\ still officially neutral, supplying the Allies) vs.\ actual U.S.\ entry into the war (Dec.\ 1941, after Pearl Harbor).

Exam trap

Japanese American internment (Executive Order 9066) was upheld by the Supreme Court in Korematsu v.\ United States (1944) and not overturned for decades -- a major civil liberties violation sanctioned by the courts.

5-second recall

Lend-Lease 1941 $arrow$ Pearl Harbor Dec.\ 1941 $arrow$ home front mobilization + internment $arrow$ D-Day 1944 $arrow$ atomic bombs Aug.\ 1945 $arrow$ UN founded.

32. Origins of the Cold War & Containment

The big idea

Ideological conflict between the U.S.\ and Soviet Union after WWII produced a decades-long Cold War, with the U.S.\ adopting a strategy of ``containment'' to stop the spread of communism.

Must know

George Kennan's containment doctrine; Truman Doctrine (1947, aid to Greece/Turkey); Marshall Plan (1948, economic aid to rebuild Western Europe); Berlin Airlift (1948--49); NATO (1949) vs.\ Warsaw Pact (1955); Korean War (1950--53, ends in stalemate near the original 38th parallel); domestic anti-communism/McCarthyism (Sen.\ Joseph McCarthy, HUAC hearings, Hollywood blacklist).

Don't confuse

The Truman Doctrine (general pledge of aid to any nation resisting communism) vs.\ the Marshall Plan (specific economic reconstruction aid targeted at Western Europe).

Exam trap

The Korean War (1950--53) ended in an armistice/stalemate near the original 38th parallel border -- not a decisive U.S.\ victory -- a frequently misremembered outcome.

5-second recall

Containment (Kennan) $arrow$ Truman Doctrine 1947 + Marshall Plan 1948 $arrow$ NATO 1949 $arrow$ Korean War 1950--53 (stalemate) $arrow$ McCarthyism at home.

33. Postwar Prosperity & Consumer Culture

The big idea

Postwar economic expansion produced widespread -- though racially uneven -- prosperity, suburbanization, and consumer culture that reshaped the American middle class.

Must know

GI Bill (1944, funded veterans' education/home loans); Levittown-style suburbanization; Baby Boom; Federal-Aid Highway Act (1956, Eisenhower) built the interstate system; growth of the Sun Belt; unequal access to postwar prosperity -- redlining and discriminatory FHA/GI Bill loan practices limited Black homeownership and suburban access; Taft-Hartley Act (1947) restricted union power.

Don't confuse

The GI Bill's stated universal availability vs.\ its unequal practical application -- discriminatory local administration and redlining often denied Black veterans the same benefits as white veterans.

Exam trap

Postwar prosperity was not evenly distributed by race, despite the era's popular ``affluent society'' image -- redlining is the specific mechanism tested.

5-second recall

GI Bill 1944 + interstate highways 1956 $arrow$ suburbanization + Baby Boom -- but redlining excludes Black Americans from equal benefit.

34. The Civil Rights Movement

The big idea

The postwar Civil Rights Movement used litigation, nonviolent direct action, and legislative pressure to dismantle legal segregation and secure federal protection of Black Americans' civil and voting rights.

Must know

Brown v.\ Board of Education (1954, overturned Plessy); Montgomery Bus Boycott (1955--56, Rosa Parks, MLK emerges as leader); Little Rock Nine (1957); Greensboro sit-ins (1960) and Freedom Rides (1961); March on Washington (Aug.\ 1963, ``I Have a Dream''); Civil Rights Act (1964); Selma and ``Bloody Sunday'' (1965); Voting Rights Act (1965); shift toward Black Power (Malcolm X, Stokely Carmichael, Black Panthers); MLK assassinated (April 1968).

Don't confuse

Civil Rights Act of 1964 (banned discrimination in public accommodations, employment, education) vs.\ Voting Rights Act of 1965 (banned discriminatory voting practices, authorized federal oversight of voter registration).

Exam trap

The strategic shift from nonviolent integrationist tactics (early 1960s) to more militant Black Power ideology (mid--late 1960s) responded to slow progress and urban conditions -- not a simple continuous movement.

5-second recall

Brown 1954 $arrow$ Montgomery Boycott 1955--56 $arrow$ March on Washington 1963 $arrow$ Civil Rights Act 1964 $arrow$ Selma/Voting Rights Act 1965 $arrow$ Black Power shift.

35. The Great Society & the Vietnam War

The big idea

Lyndon Johnson's Great Society vastly expanded the federal social welfare state, even as the escalating, divisive Vietnam War undermined his presidency and the postwar liberal consensus.

Must know

Great Society (1964--65): War on Poverty, Medicare (elderly) and Medicaid (poor) established 1965, Elementary and Secondary Education Act, Immigration and Nationality Act of 1965 (ended national-origins quotas); Gulf of Tonkin Resolution (1964); Tet Offensive (1968, turning point in U.S.\ public opinion despite military setback for the Viet Cong); antiwar movement; Kent State shootings (1970); Nixon's ``Vietnamization''; Paris Peace Accords (1973); fall of Saigon (1975).

Don't confuse

Medicare (federal health insurance for the elderly, regardless of income) vs.\ Medicaid (federal-state health insurance for low-income individuals) -- both created in 1965.

Exam trap

The Tet Offensive (1968) was a military failure for the Viet Cong/North Vietnam but a decisive psychological/political defeat for U.S.\ support of the war because it contradicted official claims that victory was near.

5-second recall

Great Society 1964--65 (Medicare/Medicaid) $arrow$ Gulf of Tonkin 1964 $arrow$ Tet Offensive 1968 (turns public opinion) $arrow$ Vietnamization $arrow$ Paris Accords 1973 $arrow$ Saigon falls 1975.

36. Social Movements & Political Realignment of the 1960s--70s

The big idea

The Civil Rights Movement's momentum inspired a broader wave of rights-based activism, even as Vietnam and social upheaval fueled a conservative backlash by the early 1970s.

Must know

Second-wave feminism (Betty Friedan's The Feminine Mystique, 1963; NOW, 1966; Equal Rights Amendment passed by Congress 1972 but failed ratification; Roe v.\ Wade, 1973); environmental movement (Rachel Carson's Silent Spring, 1962; first Earth Day, 1970; EPA created 1970); Chicano movement (Cesar Chavez, United Farm Workers) and American Indian Movement (Wounded Knee occupation, 1973); Stonewall Riots (1969); Nixon's ``Silent Majority'' and Southern Strategy; Watergate scandal leads to Nixon's resignation (Aug.\ 1974).

Don't confuse

The Equal Rights Amendment (passed Congress 1972, failed state ratification) vs.\ Roe v.\ Wade (1973 Supreme Court decision establishing a constitutional right to abortion).

Exam trap

The ERA is frequently mistested as having been ratified; it passed Congress in 1972 but fell short of the required 38 state ratifications amid conservative opposition.

5-second recall

Feminism (NOW 1966, Roe 1973) + environmentalism (Earth Day 1970/EPA) + Chicano/AIM activism + Watergate 1974 = rights expansion + political realignment.

37. The Conservative Resurgence: The Reagan Era

The big idea

A conservative political and religious resurgence in the late 1970s--80s, embodied by Ronald Reagan, reoriented U.S.\ domestic policy toward tax cuts and deregulation while renewing a hardline stance against the Soviet Union.

Must know

Rise of the New Right/Religious Right (Moral Majority, Jerry Falwell); Reagan elected 1980 (amid stagflation/Iran Hostage Crisis); ``Reaganomics''/supply-side economics (tax cuts, deregulation, increased defense spending, growing federal deficit); Reagan's ``evil empire'' rhetoric, military buildup, Strategic Defense Initiative; later Reagan-Gorbachev summits and the INF Treaty (1987); Iran-Contra Affair (1986--87).

Don't confuse

Reagan's early hardline ``evil empire'' Cold War rhetoric (early 1980s) vs.\ his later diplomatic engagement with Gorbachev (mid--late 1980s, arms-reduction treaties).

Exam trap

Reagan's tax cuts and defense spending increases coincided with a dramatically rising federal budget deficit, despite the era's small-government rhetoric.

5-second recall

Reagan 1980 $arrow$ Reaganomics (tax cuts/deregulation) $arrow$ military buildup/SDI $arrow$ Iran-Contra 1986--87 $arrow$ Gorbachev summits ease Cold War.

38. The End of the Cold War & Post-Cold War Foreign Policy

The big idea

The Cold War ended peacefully with the collapse of Soviet communism (1989--91), after which the U.S.\ navigated a ``unipolar moment'' as the world's sole superpower.

Must know

Gorbachev's reforms (glasnost/political openness, perestroika/economic restructuring); fall of the Berlin Wall (Nov.\ 1989); collapse of the Soviet Union (Dec.\ 1991); George H.W.\ Bush's Gulf War (1991, Operation Desert Storm); Bill Clinton's presidency (NAFTA, 1994; welfare reform, 1996; budget surpluses); expansion of globalization and free trade.

Don't confuse

Glasnost (Gorbachev's policy of political openness/free expression) vs.\ perestroika (his policy of restructuring the Soviet economy).

Exam trap

The USSR's 1991 collapse resulted primarily from internal Soviet economic stagnation and Gorbachev's reforms, not from a U.S.\ military victory in direct conflict.

5-second recall

Glasnost + perestroika $arrow$ Berlin Wall falls 1989 $arrow$ USSR collapses 1991 $arrow$ Gulf War 1991 $arrow$ Clinton-era NAFTA 1994/globalization.

39. Contemporary America

The big idea

Since 2001, the U.S.\ has confronted terrorism-driven foreign wars, a severe financial crisis, and accelerating technological and demographic change that continue to shape political and social debate.

Must know

September 11, 2001 terrorist attacks; War on Terror -- invasions of Afghanistan (2001) and Iraq (2003); USA PATRIOT Act (2001, expanded surveillance powers); 2008 financial crisis/Great Recession (subprime mortgage collapse, federal bailout/stimulus response); Barack Obama elected 2008 (first Black president), Affordable Care Act (2010); growing partisan polarization; increasing racial/ethnic diversity; digital/tech revolution (internet, smartphones, social media) transforming communication, economy, and politics.

Don't confuse

The War in Afghanistan (2001, response to 9/11 and the Taliban's harboring of al-Qaeda) vs.\ the Iraq War (2003, justified by disputed claims of weapons of mass destruction).

Exam trap

The 2008 financial crisis is tested as rooted in the subprime mortgage/housing bubble collapse and deregulated financial practices, not a single simple cause.

5-second recall

9/11 2001 $arrow$ Afghanistan 2001 + Iraq 2003 (War on Terror) $arrow$ 2008 financial crisis $arrow$ Obama 2008/ACA 2010 $arrow$ polarization + tech revolution.

POWER BOX 1 --- Critical Dates Every APUSH Student Must Know Cold

5-second recall

Memorize these 21 anchor dates first -- every essay prompt hangs off one of them.

POWER BOX 2 --- Terms and Pairs Students Always Confuse

5-second recall

When two terms sound alike, ask: who benefits, and in what year?

POWER BOX 3 --- Who Did What: Key Figures Taxonomy

5-second recall

Match the person to the decade and the signature policy -- DBQs love attributing quotes to the wrong figure.

POWER BOX 4 --- Foundational Documents & Landmark Cases Reference List

5-second recall

DBQs draw heavily on these texts -- know each document's author, date, and one-sentence purpose.

POWER BOX 5 --- How to Analyze a DBQ Document Set, Step by Step

5-second recall

Thesis + context + 6 docs used + sourcing on 3 + outside evidence + complexity = full 7 DBQ points.

POWER BOX 6 --- Exam Format & Question-Type Playbook

5-second recall

55 MCQ/55min/40% + 3 SAQ/40min/20% + DBQ 60min/25% + LEQ 40min/15% = 3 hrs 15 min total.

POWER BOX 7 --- Process Pathway: Stages of the Civil Rights Movement

5-second recall

Litigation $arrow$ nonviolent direct action $arrow$ landmark legislation $arrow$ Black Power $arrow$ backlash.

POWER BOX 8 --- LEQ Argumentation & Historical Reasoning Guide

5-second recall

Thesis with reasoning $arrow$ organized evidence $arrow$ explain the ``so what'' $arrow$ complexity for the top score.

POWER BOX 9 --- AP Trap Statements

POWER BOX 10 --- Final 15-Minute Review