AP World CED: What CollegeBoard actually tests, unit by unit

The AP World History Course and Exam Description (CED) is CollegeBoard's blueprint for the exam. Every question is written from the learning objectives and key concepts it lays out, so topics well outside its scope are very unlikely to be tested. Reading it changes how you study: You stop trying to cover everything your textbook mentions and focus on what the exam expects.

This article walks through what the CED expects in each of the 9 units, plus the recurring places students lose marks against it.

The CED splits the course into 9 units across four time periods (c. 1200-1450, c. 1450-1750, c. 1750-1900, and c. 1900-present). Each unit lists learning objectives, key concepts and illustrative examples. Alongside the content, the CED spells out 6 historical thinking skills (developments and processes, sourcing and situation, claims and evidence in sources, contextualization, making connections, argumentation) plus 3 reasoning processes (comparison, causation, continuity and change) that the exam tests explicitly.

Exam weightings are published as ranges, with units 3-6 (the early modern and long 19th century) carrying the most.

The CED expects you to describe major state structures across all regions circa 1200: Song China's meritocratic bureaucracy and commercial economy, the Islamic world after Abbasid decline (Seljuks, Mamluks), Delhi Sultanate in South Asia, feudal Japan, Mali and Great Zimbabwe in Africa, early Aztec and Chimu-Inca in the Americas, and post-Charlemagne Europe with its feudal system.

CED-listed comparison: Political and cultural continuities and changes in Dar al-Islam. Frequently anchors LEQ prompts.

The CED emphasizes three networks: Silk Roads, Indian Ocean, and Trans-Saharan. Expect deep questions about the causes and effects of increased trade, the role of the Mongol Empire in reviving Eurasian exchange, and the spread of religions and technologies along these routes. The Black Death is a mandatory example of the disease side of exchange.

High-yield topics: Mongol Empire's political and cultural impact, Zheng He's voyages (early 1400s), Swahili city-states.

The CED requires deep coverage of the land-based empires: Ottoman, Safavid, Mughal, Ming/Qing China, and Russia. Learning objectives include comparison of imperial expansion, religious policies (Ottoman millet system, Mughal syncretism under Akbar vs orthodoxy under Aurangzeb), taxation systems, and the role of court culture and art.

CED-listed challenge: Explain the continuities and changes in the ways empires used religion to legitimize their rule.

One of the CED's heaviest units. It covers European maritime exploration and its causes (economic, technological, religious), the Columbian Exchange and its ecological and demographic consequences, the rise of the Atlantic system (triangular trade, plantation economies, chattel slavery), and the global silver trade centered on Ming China.

Exam angle: Unit 4 material supplies evidence for a wide range of DBQ and LEQ prompts on trade, labor systems and demographic change. Students should know specific numbers (roughly 12.5 million enslaved Africans transported across the Atlantic between 1500 and 1866, per the Trans-Atlantic Slave Trade Database).

The CED covers Enlightenment intellectual foundations, the Atlantic revolutions (American, French, Haitian, Latin American), and the spread of nationalism through 19th-century Europe. Expect comparison of the causes, courses and outcomes of these revolutions, and the emergence of new ideologies (liberalism, conservatism, socialism, feminism).

High-yield: Haitian Revolution (1791-1804) as the only successful large-scale enslaved-people's revolt in modern history, and the diffusion of Enlightenment ideas across continents.

The CED requires you to explain the causes of the Industrial Revolution (Britain first, then Belgium, France, Germany, US, Japan), and its economic, social, and environmental consequences globally. Learning objectives include changes in labor systems (wage labor, second serfdom, indentured labor), gender roles, migration patterns, and the new imperialism (Berlin Conference 1884-85, scramble for Africa, informal empire in China, Meiji Japan's colonial expansion).

Exam angle: How industrial economies restructured the global division of labor, and how non-Western states responded (Meiji Restoration, Ottoman Tanzimat, Chinese Self-Strengthening).

The CED covers the causes of WWI, the Russian Revolution, interwar economic and political shifts (Great Depression, rise of fascism, League of Nations failures), WWII, and the beginning of decolonization movements. Expect comparison of totalitarian regimes and questions about the global economic and political disruption of the world wars.

High-yield: How WWI redrew the political map of the Middle East (Sykes-Picot, Balfour), and how WWII accelerated decolonization.

The CED covers the origins of the Cold War, the Non-Aligned Movement, and the wave of independence movements across Asia and Africa (India 1947, Ghana 1957, Algeria 1962, Vietnam 1954-75, Angola 1975). Expect prompts on the causes and consequences of proxy wars, the Green Revolution, and cultural shifts (second-wave feminism, environmentalism).

CED-listed comparison: Different paths to independence (negotiated, revolutionary, partition) and the challenges of postcolonial state-building.

The CED covers the end of the Cold War, the rise of the internet, China's post-1978 economic transformation, and the spread of neoliberal policies. It also covers migration, environmental challenges (climate change, biodiversity loss), and cultural globalization. Coverage past the mid-2000s is intentionally light.

Use Unit 9 mainly for continuity arguments extending from Unit 8.

Two persistent patterns. First, students over-study Western Europe and under-study everywhere else. The CED weights all regions comparably; over-focusing on Europe leaves gaps in questions about the Ottoman, Safavid, Mughal, Qing, or African trading empires. Second, students memorize events without the CED's reasoning practices. The exam explicitly tests comparison, causation, continuity and change, and contextualization: Just knowing what happened isn't enough.

Practical move: Print the CED unit outlines, mark the regions and topics you feel weakest on, and spend disproportionate time there. Then practice writing responses that name a comparison or a causal chain, not just describe an event.