AP World timeline: 1200 to present, era by era

AP World History Modern covers roughly 800 years, from 1200 to the present, across every inhabited continent. That's a lot of terrain, and the exam expects you to hold it as a single connected story rather than a stack of regional histories.

This article lays out the timeline era by era: The 9 units, the dates, the exam weight, and the events that anchor each period. Use it as a scaffold. If you can sketch the timeline from memory, you already have the structure you need for the DBQ, LEQ, SAQs and MCQs.

Unit 1 covers the state of the world's major regions around 1200: Song China's commercial revolution, the Islamic world after the Abbasid golden age, the emergence of Delhi Sultanate in South Asia, Mali and Great Zimbabwe in Africa, Aztec and Inca beginnings in the Americas, and post-Charlemagne Europe.

Unit 2 covers the connections between these regions: The Silk Roads, the Indian Ocean trade network, and the Trans-Saharan trade. The Mongol Empire (1206-1368) is the central actor: Genghis and his successors integrate Eurasia, spreading trade, ideas, disease (the Black Death, 1347-1351) and technology across the largest land empire in history.

Key turning point: The Mongol integration of Eurasia sets up the conditions for the maritime revolution of the next era.

Unit 3 covers the great land-based empires: Ottoman (from 1453 capture of Constantinople), Safavid Iran, Mughal India, and Ming then Qing China. Each rules diverse populations through variations on tolerance, tax farming, standing armies with gunpowder weapons, and elaborate court cultures.

Unit 4 covers the transoceanic revolution. Portuguese and Spanish voyages (1450s-1520s) open direct sea routes from Europe to Africa, Asia and the Americas. The Columbian Exchange transfers crops, animals and diseases between hemispheres. Silver from Potosi and Zacatecas flows into a global economy centered on Ming China's demand. Atlantic slave trade forcibly embarks roughly 12.5 million enslaved Africans between 1501 and 1866, of whom about 10.7 million survived the crossing to the Americas.

Anchor events: Ming voyages of Zheng He (1405-33), Columbus (1492), Battle of Lepanto (1571), Tokugawa shogunate founded (1603) and its isolation edicts (1633-39), Peace of Westphalia (1648).

Unit 5 covers political and Enlightenment revolutions: American (1776), French (1789), Haitian (1791-1804, the only successful large-scale slave revolt in modern history), and the Latin American independence movements (Bolivar, San Martin, roughly 1810-1830). Nationalism spreads; new ideologies (liberalism, conservatism, socialism, later feminism) emerge.

Unit 6 covers the Industrial Revolution and its global consequences. Britain leads, then Belgium, France, Germany, the US and Japan follow. Steam, then rail, then electricity and chemistry transform production and daily life. Industrial powers pursue new imperialism: European powers carve up Africa at the Berlin Conference (1884-85), and by 1900 most of the world outside the Americas and East Asia is under European or American control. Meiji Restoration (1868) turns Japan into an industrializing imperial power in a single generation.

Key exam theme: How industrialization reshaped labor systems, gender roles, migration patterns and imperial competition simultaneously.

Unit 7 covers global conflict: WWI (1914-18), Russian Revolution (1917), interwar rise of fascism, Great Depression, WWII (1939-45), and the beginning of decolonization. Empires fall or contract; the Ottoman, Austro-Hungarian, Russian and eventually British and French empires either dissolve or lose most colonies.

Unit 8 covers the Cold War (1947-91) and decolonization. India and Pakistan (1947), most of Africa (1957-1970s), Vietnam (1954-75), and dozens of smaller states gain independence. The Cold War runs through proxy wars (Korea, Vietnam, Afghanistan, Angola) and superpower crises (Cuban Missile Crisis 1962). Non-Aligned Movement, Green Revolution, and second-wave feminism shape the era.

Unit 9 is dated c. 1900-present in the CED but in practice concentrates on the period since roughly 1980: End of the Cold War (1989-91), rise of the internet, China's economic transformation, the spread of neoliberal policies, migration on unprecedented scales, and climate change as a global concern. Coverage tapers off past the mid-2000s.

Certain dates and events show up in exam prompts often enough that knowing them precisely pays off. A short list to memorize:

1206: Genghis Khan proclaimed leader of the Mongols, beginning the largest land empire in history. 1347-51: Black Death sweeps Eurasia, killing roughly a third of the European population. 1453: Ottoman capture of Constantinople; end of Byzantine Empire. 1492: Columbus reaches the Caribbean; start of sustained European-American contact. 1500-1600: Silver from Potosi and Zacatecas transforms global trade. 1602: Dutch East India Company founded; joint-stock corporation model spreads. 1776-1804: Atlantic revolutions (American, French, Haitian). 1830s-40s: British Industrial Revolution accelerates; Opium Wars begin the century of unequal treaties in China. 1868: Meiji Restoration begins Japan's rapid industrialization. 1884-85: Berlin Conference partitions Africa. 1914-18: WWI. 1917: Russian Revolution. 1929: Great Depression begins. 1939-45: WWII. 1947-91: Cold War. 1989-91: Fall of Berlin Wall, Soviet Union dissolves.

Use these dates as anchor points. Everything else in AP World is understood in relation to them.

A weekly drill that consolidates the timeline fast: Redraw it from memory on blank paper, starting with just the century markers (1200, 1300, 1400, and so on), then adding the events you can remember. Compare against a reference like the tables above. What you missed is your revision target for the week.

An even more useful variant is regional timelines. Redraw the timeline three separate times, focused on East Asia, then on Sub-Saharan Africa, then on the Islamic world. AP World's LEQ prompts often ask about a specific region across time, and having region-specific timelines in memory means you're not scrambling to invent the sequence during the exam.