AP World History: Modern — Cheatsheet
Formulas, exam-day tips, and key terms on one page.
On the exam
- When a prompt asks how a state "consolidated" power, name a concrete institution (exams, bureaucracy, tax system, standing army) and then explain the *mechanism* — how it actually extended the ruler’s control. Naming without explaining rarely earns the point.
- For any trade-route question, connect the *type of transport* to the *type of goods*. Overland routes (Silk Roads) carried high-value luxuries; sea routes could carry heavier bulk goods more cheaply. This transport-cost logic is a reliable analytical move on the exam.
- Administration questions reward the *logic* of control: rulers wanted elites who depended on **the state** rather than on **birth or land**. Devshirme, civil-service exams, and controlled tax systems all serve this aim. Explain the loyalty mechanism, not just the name.
- On the exam, be precise about *direction*. American-origin items (maize, potatoes, tomatoes, cacao, tobacco) went **east**; Old World crops, animals, and diseases (wheat, sugar, horses, smallpox) went **west**. A single mismatched direction can cost a point.
- For revolution comparisons, analyze **who led** and **who benefited**. Elite-led revolutions (American, much of Latin America) often preserved social hierarchies; the **Haitian** revolution, led by the enslaved, uniquely dismantled slavery. That distinction earns comparative-thinking points.
- Explain imperialism through the *industrial* lens: factories needed raw materials and markets, and industrial *technology* (steamships, railroads, machine guns, quinine) made conquest feasible. Tying imperialism back to industrialization is exactly the causal link this unit tests.
- For total-war questions, show the collapse of the soldier/civilian line: economic conversion, rationing, women in war industry, propaganda, and the deliberate targeting of civilians (strategic bombing, atomic bombs, genocide). Mass mobilization is the through-line of this unit.
- For the Soviet collapse, marshal *multiple* causes: economic stagnation, the arms-race burden, the Afghanistan war, Eastern European pressure, and Gorbachev’s reforms (glasnost and perestroika) that backfired. Layering several factors makes a stronger causation argument than naming just one.
- On culture, hold the tension in both hands: globalization drives **homogenization** *and* provokes **local identity backlash and hybridization**. Naming both sides — the global spread and the local reaction — is exactly the nuanced analysis this final unit rewards.
How to get a 5
- Anchor every essay in specific evidence — names, dates, places (Potosí silver, Meiji Restoration, Berlin Conference); vague generalizations rarely earn the evidence points.
- Use the reasoning skills explicitly: structure body paragraphs around causation, comparison, or continuity-and-change to lock in the analysis point.
- Earn complexity by comparing across two+ regions or showing a development's opposite effects in different places — then say so directly.
- For the DBQ, source at least three documents with HIPP (Historical situation, Intended audience, Point of view, Purpose).
Key terms
Mandate of Heaven — Chinese belief that Heaven grants rulers the right to govern by virtue; disasters or rebellion signal its loss and justify dynastic change.
Dar al-Islam — The lands/community under Islamic rule; 1200–1450 it spread trade, scholarship, and culture across Afro-Eurasia.
Silk Roads — Overland Eurasian routes carrying luxury goods, religions, technology, and disease; revived under the Mongols.
Pax Mongolica — The Mongol Peace (13th–14th c.) that secured trans-Eurasian trade and spread goods, ideas, and pathogens.
Gunpowder empires — Ottoman, Safavid, and Mughal states using firearms/artillery to build large centralized empires.
Columbian Exchange — Post-1492 transfer of plants, animals, people, and diseases between the Americas and Afro-Eurasia.
Mercantilism — Early-modern policy seeking a favorable trade balance and bullion, using colonies and monopoly trading companies.
Encomienda system — Spanish labor system granting colonists the right to demand Indigenous labor and tribute — coercive and often deadly.
Enlightenment — 17th–18th c. movement emphasizing reason, natural rights, and social contract; inspired the Atlantic revolutions.
New Imperialism — Late-1800s European domination of Africa and Asia for resources and markets, justified by nationalism and racism.
Total war — Mobilizing an entire society and economy for war (WWI, WWII), blurring soldier/civilian lines.
Decolonization — Post-1945 independence of African/Asian colonies, sometimes peaceful (India), sometimes violent (Algeria).