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AP United States History — Cheatsheet

Formulas, exam-day tips, and key terms on one page.

On the exam

On the exam, resist writing about Native Americans as one uniform group. The CED wants you to argue that **environmental variation produced social variation**. Naming a specific region and its adaptation (irrigation, bison hunting, salmon fishing) earns the point.
When a prompt asks about the *shift* to African slavery, argue causation explicitly: Native depopulation + rising profits + disease-resistant, trade-accessible African labor. Naming all three links reads as sophisticated analysis, not just description.
A Period 1 short answer almost always wants **environment → social structure**, in that direction. If your sentence names a region and a resource but never says what *changed socially* as a result, you have written half an answer. Finish the causal chain every time.
A favorite exam theme: both the Great Awakening (religious) and the Enlightenment (rational) taught colonists to **question established authority**. If a prompt asks about roots of the Revolution, you can cite *both* as sources of an independent, questioning colonial mindset.
A high-scoring Period 2 answer treats slavery as a **process with causes** — falling mortality, a shrinking servant supply, Bacon's Rebellion, then statute after statute. An answer that says slavery "existed" in the colonies describes; an answer that says *why it hardened into a racial and hereditary system* explains. Only the second earns the point.
The Anti-Federalists "lost" ratification but won something lasting: the **Bill of Rights**. On the exam, framing them as the source of our explicit individual liberties turns a losing side into a decisive legacy — a nuance that earns analysis points.
For "how revolutionary was the Revolution?" prompts, argue **both sides and then resolve them**. Radical: hereditary monarchy rejected, republics established, gradual emancipation in the North, expanded suffrage debates. Conservative: slavery preserved and strengthened in the South, women denied the vote, property qualifications retained, Native land seized. An essay that names both and then takes a position outscores one that only argues a side.
When writing about Jacksonian democracy, hold two truths at once: it **broadened** political participation for white men *and* it **narrowed** the nation through Indian Removal and continued slavery. Essays that capture this tension score higher than one-sided praise or condemnation.
Whenever a prompt involves admitting a state between 1820 and 1854, count **Senate seats** first. Nearly every antebellum compromise is an attempt to keep free and slave states equal in the Senate, because that is where the South could block. Frame it that way and the politics stop looking arbitrary.
When evaluating Reconstruction, avoid calling it a total failure. Argue the nuance: it failed to secure immediate equality, **but** the 13th, 14th, and 15th Amendments became the legal foundation for the twentieth-century civil rights movement. That "seeds for the future" framing earns complexity points.
Reconstruction essays score best when they distinguish **formal change from enforced change**. The amendments were a genuine constitutional revolution; the withdrawal of enforcement is what made them ineffective for eighty years. Saying "Reconstruction failed" without that distinction loses the analytical point — the text survived, and it is what the 1950s and 60s built on.
Populism "failed" as a party but succeeded as a preview. On the exam, note that Populist demands — **income tax (16th Amendment), direct election of senators (17th), railroad regulation** — later became mainstream Progressive reforms. Tracing that continuity earns strong analysis.
Do not caricature Washington as passive or Du Bois as impractical. Washington quietly financed lawsuits against disfranchisement; Du Bois built a mass organization that won cases for sixty years. A strong answer treats them as **competing strategies under severe constraint**, which is what the rubric's "complexity" point rewards.
A frequent DBQ theme: World War II, not the New Deal, finally ended the Depression by generating full employment. Yet the New Deal’s legacy is the **expanded, activist federal government**. Distinguishing the two shows the causation graders look for.
For any 1898 prompt, sort your evidence into **economic / strategic / ideological** and give one specific piece under each. Three labeled causes with concrete evidence beats a paragraph of narrative every time, and it makes the "multiple causation" point almost automatic.
Internment questions want more than condemnation. Name the numbers (**120,000**, two-thirds **citizens**), the legal instrument (**EO 9066**), the case (**Korematsu**), the absence of comparable treatment for German and Italian Americans, and the 1988 reparations. Specifics are what convert a moral judgment into a scored historical argument.
Connect Vietnam back to **containment** and the **domino theory**: the U.S. fought to stop communism from spreading in Southeast Asia. Framing Vietnam as containment applied (and overextended) links Period 8 into one coherent Cold War argument.
A high-scoring Cold War essay distinguishes **Kennan's containment** (selective, political, economic) from **NSC-68 containment** (global, military, undifferentiated). Almost every later controversy — Korea, Vietnam, arms racing — sits in the gap between them, and naming that gap is the sophistication point.
For Period 9, essays reward connecting **continuity and change**: immigration debates echo the nativism of the 1920s; polarization echoes earlier sectional and cultural divides. Linking the present to recurring themes across U.S. history demonstrates the long-view thinking the exam prizes.
Period 9 rewards **argued causation over opinion**. On inequality, name at least two competing explanations — technology and policy, say — give one specific piece of evidence for each, and then state which you find more persuasive and why. That structure scores; a paragraph of political preference does not.

How to get a 5

Write a thesis with a clear line of reasoning and a qualifier ("Although X, ultimately Y") so it's complex and easy to award.
Earn contextualization with 2–3 sentences of relevant background BEFORE the prompt period, connected explicitly to your argument.
For complexity, deliberately address continuity AND change, or use "however" to introduce counter-evidence you then explain.
On SAQs answer only what's asked in one or two tight sentences per part, name a specific event or person, and never write a thesis or intro.
Every APUSH free-response task rewards specificity above all. Replace “people were unhappy about taxes” with “the Stamp Act of 1765 taxed printed materials, so colonial printers and lawyers — the most articulate colonists — became organizers of resistance.” One named act, date, or actor is worth more than a paragraph of generalization.
Write the thesis as an argument with a concession built in. A pattern that reliably earns thesis and complexity points: “Although X remained largely unchanged, the period fundamentally transformed Y because Z.” That single sentence gives you a line of reasoning to follow and a built-in path to nuance.
For DBQ sourcing, do not label point of view mechanically. Explain why the author’s situation changes what the document can prove: a Democratic president issuing a loyalty order while accused of being soft on communism tells you something about electoral pressure that the order’s text alone does not.
Contextualization needs several sentences of real history placed before or after the moment in question, not a throwaway opening clause. Ask what larger process this development belongs to — imperial reorganization, industrialization, Cold War competition — and describe that process concretely.
On the multiple-choice section, read the stem for the reasoning skill being tested. If it asks which evidence supports an argument, several answers will be true statements and only one will actually support that argument; if it asks about change over time, eliminate anything that names a development from outside the stated date range.

Key terms

Mercantilism — The belief that global wealth is fixed, so a nation grows rich by exporting more than it imports and holding colonies as sources of raw materials and captive markets.

Salutary neglect — Britain's loose enforcement of trade laws before 1763, which let colonial assemblies build real power — so post-1763 enforcement felt like a violation of established rights.

Republican motherhood — The idea that women served the republic by raising virtuous citizens. Justified female education while confining women to the household.

Market Revolution — Canals, roads, railroads and the telegraph turned local subsistence into a national market economy, specializing regions and pulling women into wage work.

Manifest Destiny — The 1840s belief that the United States was providentially destined to expand across the continent. Significance: justified Texas annexation, the Oregon settlement, and the Mexican-American War — and by adding vast territory, forced the slavery-expansion question that broke the party system.

Popular sovereignty — Doctrine that territory settlers vote on slavery; used in the Compromise of 1850 and Kansas-Nebraska Act.

Reconstruction Amendments — 13th (abolished slavery), 14th (citizenship/equal protection), 15th (Black male suffrage), 1865–1870.

Gilded Age — Late-1800s era of rapid industrialization, monopolies, corruption, and inequality beneath a glittering surface.

Progressive Era — ~1890–1920 reform targeting corruption, monopolies, and social ills via regulation, trust-busting, and amendments (16th–19th).

New Deal — Roosevelt’s relief, recovery, and reform programs (1933–1939), including the CCC, WPA, AAA, TVA, NLRA, and Social Security. Significance: established a permanent federal role in economic security and regulation, built the Democratic New Deal coalition, and defined the terms of American politics into the 1970s.

Containment — Kennan's doctrine of resisting Soviet expansion wherever it appeared, without direct war. The organizing principle of US policy for forty years.

APUSH periodization — Nine units: 1491–1607, 1607–1754, 1754–1800, 1800–1848, 1844–1877, 1865–1898, 1890–1945, 1945–1980, 1980–present.

Columbian Exchange — The post-1492 transfer of crops, animals, people, and pathogens between the Americas and Afro-Eurasia. Significance: Old World diseases killed up to 90 percent of Indigenous populations, while American crops such as maize and potatoes fueled Eurasian and African population growth.

Encomienda system — Spanish grants entitling colonists to Indigenous tribute and forced labor. Significance: the first large coercive colonial labor system in the Americas; its brutality provoked the Las Casas–Sepúlveda debate and pushed Spain toward importing enslaved Africans.

Bacon’s Rebellion (1676) — Virginia frontier uprising led by Nathaniel Bacon against Governor Berkeley over Indian policy and access to land. Significance: the cross-racial alliance of poor whites and enslaved Africans alarmed planters, accelerating the shift to racial slavery and formal slave codes.

Navigation Acts and mercantilism — Laws requiring colonial trade to move in English ships through English ports. Significance: embodied the mercantilist view of colonies as sources of raw materials and captive markets; lax enforcement (“salutary neglect”) made post-1763 enforcement feel like tyranny.

First Great Awakening (1730s–1740s) — Evangelical revival led by preachers such as Jonathan Edwards and George Whitefield. Significance: split congregations into “Old Lights” and “New Lights,” encouraged colonists to question established authority, and created the first genuinely intercolonial popular movement.

Proclamation of 1763 — British ban on colonial settlement west of the Appalachians after Pontiac’s War. Significance: the first postwar imperial measure to anger colonists, signaling the end of salutary neglect and frustrating land speculators and veterans alike.

Great Compromise (1787) — Connecticut plan creating a House apportioned by population and a Senate with equal state representation. Significance: resolved the Virginia–New Jersey deadlock and made the Constitution possible; paired with the three-fifths clause, which gave slaveholding states added political power.

Federalist No. 10 — Madison’s argument that a large republic controls the “mischiefs of faction” by multiplying interests so no single one can dominate. Significance: reversed the classical assumption that republics must be small, and remains the core defense of extended federal government.

Marbury v. Madison (1803) — Marshall Court decision declaring a section of the Judiciary Act of 1789 unconstitutional. Significance: established judicial review, making the Supreme Court a coequal branch capable of voiding acts of Congress.

Market Revolution (c. 1815–1848) — Transportation, communication, and manufacturing changes — canals, railroads, telegraph, factory textiles — that knit regions into a national market. Significance: created wage labor and a middle class, specialized the South in cotton and the West in grain, and deepened sectional interdependence and conflict.

Second Great Awakening — Early nineteenth-century revival stressing free will and moral perfectibility, associated with Charles Finney and the “burned-over district.” Significance: supplied the religious motivation and organizational networks for temperance, asylum reform, and immediate abolitionism.

Missouri Compromise (1820) — Admitted Missouri as a slave state and Maine as free, barring slavery north of 36°30′ in the Louisiana Purchase. Significance: preserved Senate balance and set the precedent of drawing geographic lines around slavery — a framework destroyed by Kansas-Nebraska (1854) and Dred Scott (1857).