How did maritime empires maintain and develop their power through new economic systems, coerced labor, and the silver trade?
Topic 4.5 Maritime Empires Maintained and Developed: how maritime empires sustained their power through new economic systems, mercantilism, the silver trade, and systems of coerced and slave labor.
A focused answer to AP World History Topic 4.5, explaining how maritime empires maintained and developed their power through mercantilism, the global silver trade, plantation economies, and systems of coerced and enslaved labor including the Atlantic slave trade and the encomienda.
Reviewed by: AI editorial process; not yet individually human-reviewed
Have a quick question? Jump to the Q&A page
Jump to a section
What this topic is asking
Topic 4.5 turns from how maritime empires were established (Topic 4.4) to how they were maintained and developed. It asks you to explain the economic systems and labor systems that sustained imperial power between about 1450 and 1750: the policy of mercantilism, the global silver trade, the rise of plantation economies, and the systems of coerced and enslaved labor - above all the Atlantic slave trade - that produced the wealth.
The economic policy: mercantilism
The maintenance of empire began with an economic theory.
The global silver trade
Silver was the lubricant of the new world economy.
The labor systems that produced the wealth
The plantations and mines that fed this economy ran on coerced labor.
- The Atlantic slave trade. Millions of enslaved Africans were transported across the Atlantic (the Middle Passage) to labor on American plantations, above all growing sugar, as well as tobacco and later cotton. This was the largest forced migration of the era.
- The encomienda. In Spanish America, the encomienda granted colonists the right to demand labor and tribute from Indigenous people, a brutal system of forced work.
- The mita. A system of coerced Indigenous labor, adapted from earlier Andean practice, used to staff the silver mines such as Potosi.
The demographic collapse of Indigenous populations (Topic 4.3) deepened the demand for enslaved African labor.
How it all fit together
Topic 4.5 rewards seeing the system.
Mercantilist policy made colonies valuable; plantation cash crops and silver were the wealth; and coerced labor produced both. Each part depended on the others, and together they maintained the maritime empires and tied the world into one economy.
Try this
Q1. Name the great American silver mine whose bullion flowed across the world to China. [Recall]
- Cue. Potosi, in modern Bolivia, a major source of the silver that integrated the global economy.
Q2. Explain one way coerced labor produced the wealth of the maritime empires. [Short explanation]
- Cue. Enslaved Africans transported in the Atlantic slave trade worked American plantations growing cash crops such as sugar, producing the exports that mercantilist empires turned into wealth.
Exam-style practice questions
Practice questions written in the style of College Board exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
AP 2018 (style)3 marksBriefly describe ONE labor system used in the maritime empires in the period c. 1450 to c. 1750. Briefly explain ONE economic policy that empires used to maintain power. Briefly explain ONE global effect of the silver trade.Show worked answer →
A Short Answer Question (SAQ), 3 points, one per bullet.
A. Describe: the Atlantic slave trade, in which millions of enslaved Africans were transported across the Atlantic to labor on plantations in the Americas.
B. Policy: mercantilism, under which states sought to accumulate bullion and run a favorable balance of trade, using colonies as sources of raw materials and markets.
C. Silver effect: American silver, mined at places like Potosi, flowed across the Pacific to China, where it was demanded for taxes, integrating the world into a single bullion-driven economy.
Each bullet must be concrete. "They used workers" earns nothing; "the Atlantic slave trade supplied plantation labor" earns the point.
AP 2021 (style)6 marksEvaluate the extent to which coerced labor systems were essential to the maintenance of maritime empires in the period c. 1450 to c. 1750.Show worked answer →
A Long Essay Question (LEQ), scored on the 6-point causation rubric.
Thesis (1): "Coerced labor was essential to maritime empires, because plantation and mining economies depended on enslaved Africans and Indigenous labor, though mercantilist policy and the silver trade were also central to their wealth."
Contextualization (1): situate the labor systems within the new transoceanic economy after 1492.
Evidence (2): the Atlantic slave trade and plantation sugar; the encomienda and mita; American silver from Potosi; mercantilism.
Analysis (2): explain HOW coerced labor produced the cash crops and silver that funded empire, then add complexity by noting that the labor systems served the mercantilist economy and the bullion trade, so labor, policy, and silver were interlocked.
Related dot points
- Topic 4.4 Maritime Empires Link Regions: how Europeans established maritime empires and trading-post networks, and how states and companies came to dominate transoceanic trade.
A focused answer to AP World History Topic 4.4, explaining how Europeans built maritime empires by establishing trading-post networks and colonies, how chartered joint-stock companies such as the Dutch and English East India Companies dominated trade, and how new sea routes linked the world's regions.
- Topic 4.3 Columbian Exchange: the causes and effects of the transfer of animals, plants, foods, diseases, technology, and people across the Atlantic between the Eastern and Western Hemispheres.
A focused answer to AP World History Topic 4.3, explaining the Columbian Exchange: the transfer of crops, animals, people, and diseases across the Atlantic after 1492, the catastrophic effect of Old World disease on Indigenous Americans, and the demographic and dietary changes it caused worldwide.
- Topic 4.7 Changing Social Hierarchies from 1450 to 1750: how the new economic and political developments of this period changed social hierarchies, including the rise of new elites and the creation of new racial and social categories.
A focused answer to AP World History Topic 4.7, explaining how the new transoceanic economy reshaped social hierarchies between 1450 and 1750, including the rise of merchant and gentry elites, the creation of racial categories such as the casta system in the Americas, and continuities in existing hierarchies.
- Topic 4.6 Internal and External Challenges to State Power from 1450 to 1750: the internal and external factors, including rebellions and resistance, that both challenged and strengthened the power of states in this period.
A focused answer to AP World History Topic 4.6, explaining the internal and external challenges to state power between 1450 and 1750, including peasant and religious revolts, slave resistance, and rivalries between states, and how rulers responded to consolidate authority.
- Topic 2.7 Comparison of Economic Exchange: applying the historical reasoning skill of comparison to the causes and effects of the Silk Roads, Indian Ocean, and trans-Saharan networks.
A focused answer to AP World History Topic 2.7, the comparison reasoning skill applied to Unit 2: comparing the causes, goods, technologies, and effects of the Silk Roads, Indian Ocean, and trans-Saharan trade networks, and how to structure a comparison essay.
Sources & how we know this
- AP World History: Modern Course and Exam Description — College Board (2020)