AP World History: Modern · Lesson 3 of 9 · Unit 5

The Industrial Revolution begins and spreads

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The Industrial Revolution fundamentally reshaped global wealth and power after 1750, making it a cornerstone of Unit 5. On the AP exam, you will frequently see maps of natural resources, quantitative tables showing shifting shares of global manufacturing, and causation prompts asking why industrialization began in Britain and how its spread altered Asian and Middle Eastern economies.

By the end you’ll be able to

Explain how factors including proximity to waterways, the distribution of coal, iron and timber, urbanization, improved agricultural productivity, legal protection of private property, access to foreign resources and the accumulation of capital contributed to the Industrial Revolution.
Explain how the factory system concentrated production in a single location and increased the specialization of labor.
Explain how new methods of industrial production spread from northwestern Europe to other parts of Europe and to the United States, Russia and Japan.

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Core ideas (continued)
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What the exam asks

Multiple-choice sets: Expect quantitative charts showing the decline of Asian manufacturing alongside the rise of Western output, or maps linking coal deposits and canals to early industrial cities.
Short-answer questions (SAQs): Often ask you to identify or explain environmental or economic causes of Britain’s industrialization, or to explain an economic consequence of industrialization on a non-European region.
DBQ and LEQ: This topic serves as vital contextualization for imperialism (Unit 6) or as core evidence for prompts on economic systems (ECN), technology (TEC), and environmental interactions (ENV) between 1750 and 1900.

Core ideas

Why Britain and northwestern Europe went first (ENV)

Industrialization was not an accident; seven distinct environmental, institutional, and economic factors converged in Great Britain and northwestern Europe around 1750:

Proximity to waterways: Abundant navigable rivers, natural harbors, and a growing network of canals allowed cheap, fast transport of heavy raw materials and finished goods.
Distribution of coal, iron, and timber: Britain sat atop massive, easily accessible deposits of coal (to fuel steam engines) and iron ore (to build machinery, bridges, and railways), supplementing and replacing scarce timber.
Improved agricultural productivity: The Second Agricultural Revolution—featuring crop rotation, the seed drill, New World crops like the potato, and the enclosure movement—produced more food with fewer farmworkers.
Urbanization: Displaced rural workers migrated to cities such as Manchester and Liverpool, creating a concentrated pool of wage labor.
Legal protection of private property: British laws and Parliament securely protected land, patents, and business investments from arbitrary seizure by the crown.
Access to foreign resources: Maritime empires and Atlantic trade networks supplied raw materials Britain could not grow itself, such as raw cotton from enslaved labor in the Americas and timber from colonies.
Accumulation of capital: Profits from transoceanic trade, the Atlantic plantation system, and a well-developed banking system gave investors liquid capital to fund factories and mines.