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🌍AP World History: Modern Unit 2 Review

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2.7 Comparison in Trade from 1200-1450

🌍AP World History: Modern
Unit 2 Review

2.7 Comparison in Trade from 1200-1450

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025
🌍AP World History: Modern
Unit & Topic Study Guides
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Comparison of Economic Exchange

Between 1200 and 1450 CE, different trade networks connected distant parts of Afro-Eurasia. Whether goods moved by camel across scorching deserts, by ship over vast oceans, or by cart along ancient roads, these networks shared important similarities while maintaining unique characteristics. The Silk Roads, Indian Ocean maritime routes, and trans-Saharan caravan paths created an increasingly interconnected world where goods, ideas, and technologies spread farther and faster than ever before. These networks fundamentally changed societies across three continents and laid the groundwork for later global connections.

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Major Trade Networks Overview

To understand how trade shaped this period, we need to compare the major networks and how they functioned.

NetworkPrimary ModeRegions ConnectedMajor ChallengesNotable Features
Silk RoadsCamel caravans, horse transportChina, Central Asia, Middle East, EuropeMountain passes, deserts, political fragmentationOldest established routes; heavily influenced by Mongol unification; traded luxury goods like silk, spices, and precious metals
Indian OceanSailing shipsEast Africa, Middle East, India, Southeast Asia, ChinaMonsoon patterns, pirates, port accessSeasonal rhythm based on winds; relatively peaceful compared to other networks; traded spices, textiles, and luxury goods
Trans-SaharanCamel caravansNorth Africa, West AfricaExtreme desert conditions, water scarcity, navigationHeavily dependent on oasis cities; salt-gold exchange crucial; dominated by Arab and Berber traders

The Silk Roads

The Silk Roads consisted of a series of land-based routes connecting East Asia to the Mediterranean through Central Asia and the Middle East. Despite crossing some of the world's most treacherous regions (including the Gobi Desert, the Himalayas, and the Taklamakan Desert), these routes remained vital for over two thousand years.

Key characteristics of the Silk Roads:

  • Primarily land-based transportation using camel caravans
  • Dominated by luxury goods that were high value and low weight
  • Chinese silk was the signature commodity that gave the network its name
  • Religious ideas, especially Buddhism, spread extensively along these routes
  • The network was revitalized under Mongol rule with improved security

Indian Ocean Trade

The Indian Ocean trade network connected coastal regions across a vast maritime space. Unlike the Silk Roads, this network relied on predictable seasonal winds that allowed merchants to travel in regular patterns.

What made Indian Ocean trade distinctive:

  • Maritime transport using ships that grew larger and more specialized over time
  • More diverse group of traders including Arabs, Persians, Indians, and Chinese
  • Monsoon wind patterns enabled predictable travel schedules
  • Transported both bulk goods and luxury items efficiently
  • Relatively safer due to the presence of powerful naval powers like China and various Indian states
  • Tropical goods like spices were signature commodities

A merchant from Gujarat wrote in 1421: "Our vessels leave with the northeast winds after the harvest and return six months later driven by the southwest monsoon. In this way, we can predict the sailing season years in advance and plan our investments accordingly. It is a more civilized way to trade than the uncertain journeys across mountains and deserts."

Trans-Saharan Trade

The trans-Saharan routes connected the Mediterranean world with the wealthy kingdoms of West Africa. Merchants crossed the vast Sahara Desert, an ocean of sand nearly the size of the United States, creating vital economic links between very different regions.

Defining features of trans-Saharan trade:

  • Completely dependent on camels, the "ships of the desert"
  • Specialized camel saddles revolutionized desert transportation
  • Massive caravans (sometimes with thousands of camels) for protection
  • Dominated by Arab and Berber traders
  • Gold-salt exchange was the economic foundation of the system
  • Played a crucial role in spreading Islam to sub-Saharan Africa

Similarities Among Trade Networks

Despite their different environments and challenges, these networks shared important similarities that reflect common solutions to the problems of long-distance trade.

Cultural, Technological, and Biological Diffusion

All trade networks facilitated important exchanges beyond just commercial goods.

Cultural diffusion occurred along all major routes:

  • Religious ideas spread widely—Buddhism along the Silk Roads, Hinduism and Islam in the Indian Ocean basin, and Islam across trans-Saharan routes
  • Artistic styles and architecture moved between regions
  • Literary traditions and stories were exchanged and adapted
  • Musical instruments and performance styles crossed cultural boundaries
  • Languages expanded their reach through trade contacts

Technologies moved in multiple directions:

  • Chinese innovations like paper, porcelain, and compass technology spread westward
  • Middle Eastern glassmaking and textile techniques moved eastward
  • Shipbuilding knowledge was shared between maritime cultures
  • Agricultural methods and crop varieties traveled between regions
  • Military technologies, especially gunpowder weapons, spread widely

Biological exchanges reshaped environments:

  • New food crops transformed agriculture in many regions
  • Disease pathogens spread along trade routes, sometimes with devastating consequences
  • Domesticated animals moved to new environments
  • Ornamental plants and trees were exchanged between courts and elites
  • Pest species sometimes traveled with trade goods

Commercial Innovations

All trade networks developed sophisticated commercial practices to enable long-distance exchange.

Key commercial innovations included:

  • Caravanserais - fortified inns along trade routes that provided safe lodging, storage, and trading spaces

  • Forms of credit - including letters of credit that allowed merchants to avoid carrying large amounts of currency

  • Money economies - standardized currencies that facilitated trade across political boundaries

  • Partnerships to share risks among multiple investors

  • Price information networks to coordinate markets across great distances

  • Specialized agents who represented merchant interests in distant cities

These innovations increased both the volume and geographic range of trade by making long-distance commerce more predictable and less risky.

Differences Among Trade Networks

While the networks shared many similarities, they also developed distinctive characteristics based on their environments and the societies they connected.

Trading Environments and Transportation

Each network had to solve unique transportation challenges:

The Silk Roads crossed extreme mountain and desert environments, requiring:

  • Specialized knowledge of mountain passes and desert water sources
  • Relays of different pack animals suited to various terrains
  • Extensive infrastructure of caravanserais for shelter in harsh conditions
  • Protection against bandits in remote areas

The Indian Ocean trade relied on maritime knowledge:

  • Understanding of monsoon wind patterns was essential
  • Ships designed for different ocean conditions
  • Knowledge of currents, reefs, and harbors
  • Navigation techniques using stars and later compasses
  • Port facilities for loading and unloading goods

Trans-Saharan trade conquered one of earth's harshest environments:

  • Complete reliance on camels, the only animal suited to desert crossing
  • Expert navigation skills to find oasis stops in vast sand seas
  • Timing travel to avoid the hottest seasons
  • Specialized clothing and equipment for desert conditions

Types of Goods Exchanged

The types of goods traded varied significantly between networks based on transportation constraints and regional specialties:

Silk Roads focused on high-value, low-bulk luxury items:

  • Chinese silk and porcelain
  • Precious metals and gemstones
  • Spices and incense
  • Fine textiles from multiple regions
  • Exotic medicinal ingredients

Indian Ocean trade carried both luxury goods and bulk commodities:

  • Spices (pepper, cinnamon, cloves)
  • Textiles of various qualities
  • Tropical hardwoods
  • Ceramics and glassware
  • Bulk goods like rice, cotton, and timber

Trans-Saharan trade concentrated on a few high-value commodities:

  • Gold from West Africa
  • Salt from Saharan mines
  • Slaves (unfortunately a major commodity)
  • Luxury goods like ivory and exotic animal products
  • Textiles and manufactured items from North Africa

Production and Specialization

The expansion of trade encouraged regional specialization, but in different patterns:

Chinese production for export focused on sophisticated manufactured goods:

  • Porcelain production in specialized kiln centers like Jingdezhen
  • Silk textiles from specialized weaving centers
  • Iron and steel manufacturing expanded dramatically
  • Paper production for growing international markets
  • Lacquerware and other luxury items

Indian production specialized in textiles and agricultural goods:

  • Cotton textiles of varying qualities for different markets
  • Spices from specialized growing regions
  • Gemstone cutting and jewelry manufacturing
  • Sugar production and processing
  • Indigo and other natural dyes

African and Middle Eastern production complemented these patterns:

  • Gold mining in West Africa became increasingly sophisticated
  • Salt production in the Sahara was organized on an industrial scale
  • Specialized textile production in North Africa and the Middle East
  • Glassware and metalwork from Mediterranean workshops
  • Ivory carving and leatherwork in various African regions

Environmental Impact and Changes

The intensification of trade had significant environmental consequences, though these varied between networks.

Landscape changes accompanied trade expansion:

  • Deforestation for shipbuilding in the Indian Ocean region
  • Mining operations for gold in West Africa altered landscapes
  • Erosion along heavily trafficked Silk Road segments
  • Agricultural specialization changed land use patterns
  • Urbanization concentrated environmental impact around trading centers

Resource exploitation intensified to meet growing demand:

  • Chinese porcelain production consumed huge amounts of fuel wood
  • Spice cultivation in Southeast Asia expanded into new territories
  • Ivory hunting reduced elephant populations in parts of Africa
  • Mining for precious metals created localized pollution
  • Textile production increased demand for dyes and mordants

Despite these differences, all the major trade networks of the period between 1200 and 1450 CE helped create a more interconnected Afro-Eurasian world. The commercial practices, trade connections, and cultural exchanges established during this period laid important foundations for the truly global networks that would develop after 1450. Whether moving by camel, ship, or caravan, merchants of this era helped shrink distances between previously isolated regions and created lasting connections that would shape human history.

Vocabulary

The following words are mentioned explicitly in the College Board Course and Exam Description for this topic.

TermDefinition
biological diffusionThe movement and spread of plants, animals, and diseases across different regions through trade and human interaction.
caravanseraiA roadside inn or fortified trading post that provided shelter and facilities for merchants and traders traveling along trade routes.
cultural transferThe movement and adoption of ideas, beliefs, practices, and knowledge systems from one region or civilization to another.
forms of creditFinancial instruments and practices, such as letters of credit, that facilitated long-distance trade by allowing merchants to conduct transactions without physically transporting large amounts of currency.
iron and steelMetals whose manufacture expanded in China during this period, reflecting increased productive capacity and trade demand.
luxury goodsHigh-value, non-essential commodities such as textiles, porcelains, spices, and precious items that were highly desired and traded across long distances.
money economiesEconomic systems based on the use of currency and monetary exchange rather than barter, which expanded trade capabilities.
networks of exchangeInterconnected systems of trade and cultural interaction spanning vast distances, developed during the period c. 1200 to c. 1450.
porcelainsFine ceramic goods produced primarily by Chinese artisans and exported as luxury items through trade networks.
productive capacityThe ability of a society or region to produce goods, which increased due to expanded trade networks and technological innovations.
Silk RoadsMajor trade routes connecting East Asia, Central Asia, and the Mediterranean world, facilitating the exchange of goods, technologies, and ideas from c. 1200-1450.
technological transferThe movement and adoption of tools, techniques, and innovations from one region or civilization to another.
textilesWoven fabrics and cloth produced by Chinese, Persian, and Indian artisans for export through trade networks.

Frequently Asked Questions

What is economic exchange and why does it matter from 1200-1450?

Economic exchange = the movement of goods, people, money, and ideas across networks like the Silk Roads, Indian Ocean, and Trans-Saharan routes (1200–1450). It matters because these networks increased volume and range of trade (luxury goods, textiles, porcelains, gold, and slaves), spread technologies (astrolabe, dhow, Chinese junk), and created commercial innovations (caravanserai, bills of exchange, paper money). These changes boosted cities (Samarkand, Timbuktu, Swahili city-states), reshaped social and gender roles through specialized production, and caused environmental and demographic effects. For AP, you should be able to compare similarities and differences among networks (LO L): e.g., Silk Roads = luxury overland goods; Indian Ocean = bulk and regional specialization using monsoon knowledge; Trans-Saharan = gold and camels linking West Africa with Islam. Practice comparing causes, products, and impacts for short answers and essays. Review the Topic 2.7 study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and try practice problems (https://library.fiveable.me/practice/ap-world-history).

What were the main trade networks during the medieval period?

The main medieval trade networks (c.1200–1450) were the Silk Roads (overland Eurasian routes linking China to Central Asia and Europe via cities like Samarkand), the Indian Ocean network (maritime routes using dhows and Chinese junks linking East Africa, Arabia, South Asia, and Southeast Asia—key nodes: Swahili city-states, Gujarat, Southeast Asian ports), and the Trans-Saharan routes (connecting West Africa—Timbuktu, Gao—to North African and Mediterranean markets). These networks shared innovations like caravanserai, credit instruments (bills of exchange), and navigational tech (astrolabe); they transmitted luxury goods (silk, spices, porcelain), ideas, and people (Marco Polo, Mansa Musa, Yuan Dynasty contacts). For AP exam prep, know similarities/differences (goods, transport, tech, cities) for Topic 2.7 and use the Topic 2.7 study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs). For more review and 1,000+ practice questions, see the Unit 2 page (https://library.fiveable.me/ap-world-history/unit-2) and practice bank (https://library.fiveable.me/practice/ap-world-history).

How did the Silk Roads actually work and who used them?

The Silk Roads were a network of linked overland routes (not one road) that connected China, Central Asia, the Middle East, and Europe from c.1200–1450. Caravans of camels and horses carried high-value, low-bulk luxury goods—silk, porcelain, spices, precious metals—between trading hubs like Samarkand and Kashgar. Traders used caravanserai for rest and safety; innovations like forms of credit, bills of exchange, and paper money (in China) made long-distance trade easier. Political stability under the Mongol khanates boosted traffic and safety; travelers like Marco Polo were merchants or envoys who recorded routes. Users included long-distance merchants, local middlemen, state officials, and artisans producing export goods. The Silk Roads spread goods, technologies, and ideas (religions, printing, gunpowder)—key CED themes for Topic 2.7. For AP essays/DBQs, use this network to compare economic exchange with the Indian Ocean and Trans-Saharan routes. Review the Topic 2 study guide on Fiveable for examples and practice (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs).

Why did trade networks expand so much between 1200 and 1450?

Trade networks exploded 1200–1450 because several connected changes made long-distance exchange easier, safer, and more profitable. Transportation and navigational tech (Chinese junks, dhows, the astrolabe), plus infrastructure like caravanserai, lowered costs and time. Commercial innovations—bills of exchange, credit, and growing money economies—simplified transactions across regions. Political shifts (e.g., Mongol stability on the Silk Roads, powerful states controlling coasts) reduced risks and expanded routes. Rising demand for luxury goods (silk, spices, textiles, porcelain) in Afro-Eurasia pushed producers and merchants to scale up, creating new trading cities (Samarkand, Timbuktu, Swahili city-states). All together these factors deepened and widened networks (Silk Roads, Indian Ocean, Trans-Saharan), boosting volume and geographic reach. For the AP exam, tie this to Learning Objective L and use specific examples and keywords from Topic 2.7. Review the Fiveable study guide for Topic 2.7 for concise examples and practice (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and try practice questions (https://library.fiveable.me/practice/ap-world-history).

What's the difference between the Silk Roads, Indian Ocean trade, and Trans-Saharan routes?

Short answer: The three networks differed in geography, technology, goods, and organization. The Silk Roads were overland Eurasian routes linking China, Central Asia, Persia, and the Mediterranean—luxury goods (silk, porcelains, horses), caravanserai, and relay trade dominated; cities like Samarkand thrived. Trans-Saharan routes connected West Africa to North Africa across desert caravans—gold, salt, kola nuts, and enslaved people moved; camel caravans and Saharan oases powered trade; Timbuktu and Mansa Musa are key. Indian Ocean trade was maritime across the Arabian Sea and beyond—bulk and luxury goods (spices, timber, textiles) moved on dhows and Chinese junks using monsoon winds, astrolabes, and credit (bills of exchange); Swahili city-states linked East Africa to India and SE Asia. For the AP exam, practice comparing similarities/differences (Topic 2.7 L) and use this Fiveable study guide for review (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs). For drills, try the practice questions (https://library.fiveable.me/practice/ap-world-history).

I'm confused about caravanserai - what are they and why were they important?

Caravanserai were roadside inns along overland trade routes (especially the Silk Roads) that sheltered merchants, animals, and goods. They offered lodging, water, secure courtyards for camels/pack animals, places to bargain, and sometimes storage or basic banking—so traders could rest, exchange information, and continue safely. They mattered because they lowered travel costs and risks, regularized caravan timetables, and helped spread luxury goods (silks, spices, textiles) and ideas across Afro-Eurasia. Caravanserai also encouraged the growth of cities like Samarkand and other trading hubs and supported commercial innovations (forms of credit, money economies) that the CED highlights for Topic 2.7. For AP study, know their role in expanding the Silk Roads and linking cultural and technological diffusion (use Topic 2.7 study guide: https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs). For more practice, Fiveable has extra practice questions (https://library.fiveable.me/practice/ap-world-history).

How did new forms of credit and money change trade during this time period?

New forms of credit and money made long-distance trade faster, safer, and larger in scale. Instruments like bills of exchange and letters of credit let merchants avoid carrying gold across Silk Roads, Trans-Saharan, and Indian Ocean routes; that reduced robbery risk and sped transactions. Paper money (notably in China) and wider money economies standardized value, encouraging specialists (like textile and porcelain producers) to export more. Credit networks also linked commercial cities (Samarkand, Timbuktu, Swahili city-states) and supported bigger caravan and ship operations using caravanserai, dhows, and Chinese junks. For the AP exam, mention specific examples (bills of exchange, paper money, growth of money economies) in short-answer or DBQ responses to show causation and continuity/change. For a focused review, see the Topic 2.7 study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and try practice problems (https://library.fiveable.me/practice/ap-world-history).

What caused the demand for luxury goods to increase in Afro-Eurasia?

Demand for luxury goods in Afro-Eurasia rose because more people with wealth and taste could access long-distance markets. Expanding trade networks (Silk Roads, Indian Ocean, Trans-Saharan) plus political stability in parts of Eurasia (e.g., Mongol-era connections) widened markets. Improvements in transportation (caravanserai, dhows, Chinese junks), commercial tech (bills of exchange, forms of credit, paper money), and urban growth created reliable routes and lower costs—so elites and courts across China, Persia, India, and Europe bought exotic silks, spices, and porcelains. Rising merchant classes and powerful states sponsored luxury consumption as status displays, so artisans ramped up export production (textiles, porcelain, iron/steel in China). That combination of greater demand, easier long-distance exchange, and better commercial practices is exactly what Topic 2.7 covers (see Fiveable’s Topic 2 study guide for Unit 2: https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs). For extra practice, try the AP questions at (https://library.fiveable.me/practice/ap-world-history).

Did the growth of trade networks actually help or hurt regular people?

Short answer: it did both—trade networks 1200–1450 helped many regular people but also hurt others. Helpful effects: expanded trade (Silk Roads, Indian Ocean, Trans-Saharan) increased availability of goods, jobs for artisans and merchants, and city growth (Samarkand, Swahili city-states). Innovations—caravanserai, bills of exchange, paper money, dhows, junks, astrolabe—lowered costs and made long-distance trade safer, boosting incomes for many producers and port workers. Harmful effects: demand focused on luxury goods and cash crops could undermine local food production and create inequality; long-distance routes spread disease (Black Death later) and sometimes exposed small producers to volatile markets and indebtedness. Women’s and labor roles shifted unevenly—some gained new work, others faced harsher exploitation. For AP: be ready to compare networks (Silk Roads vs. Indian Ocean vs. Trans-Saharan) and use specific examples/techniques on the exam. For a focused review, see the Topic 2.7 study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and practice questions (https://library.fiveable.me/practice/ap-world-history).

How do I write a DBQ comparing different trade networks from 1200-1450?

Start with a clear comparative thesis that answers “how were these networks similar and different?” (e.g., “Between 1200–1450 the Silk Roads, Indian Ocean, and Trans-Saharan routes all expanded long-distance luxury exchange through new commercial technologies, but they differed in transport tech, state roles, and types of goods.”). Contextualize briefly (Mongol stability, Indian Ocean monsoon knowledge, rise of Sahelian states). Structure body paragraphs by analytic categories (transport/tech, goods, institutions/credit, cities/societies, cultural effects). For each paragraph compare 2–3 networks using document evidence (use at least 4 docs), then tie to your thesis. Remember DBQ moves: describe content from docs, source two documents (POV/purpose/audience), and use 1+ piece of outside evidence—e.g., caravanserai, dhows/Chinese junks, bills of exchange, Timbuktu, Swahili city-states, Mansa Musa. End with a synthesis/complexity sentence (show nuance: overlap, exceptions, or long-term consequences). For AP-style practice and a topic study guide, see the Fiveable study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and try practice questions (https://library.fiveable.me/practice/ap-world-history).

What were the environmental effects of increased trade during this period?

Increased trade c.1200–1450 changed environments in several clear ways. Overland and maritime routes (Silk Roads, Indian Ocean, Trans-Saharan) spurred more intensive resource extraction around trading hubs—deforestation for shipbuilding and fuel, soil depletion from expanded agriculture, and overgrazing around caravan stops and oasis towns. Trade also spread crops, animals, and pests: champa rice and new bananas boosted populations and reshaped land use; conversely, the movement of rodents and fleas aided the spread of the Black Death (biological diffusion). Coastal trade raised pressure on fisheries and led to larger ports and urban pollution. Finally, innovations that increased trade volume (paper money, bills of exchange, improved ships like dhows and Chinese junks) amplified these environmental impacts by making long-distance commerce more efficient. For AP tasks, use specific examples (e.g., champa rice, shipbuilding, plague) and connect environmental cause–effect in short answers or essays (see the Topic 2.7 study guide for review) (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs). For more practice, check Fiveable’s Unit 2 overview and practice problems (https://library.fiveable.me/ap-world-history/unit-2) (https://library.fiveable.me/practice/ap-world-history).

Why did Chinese, Persian, and Indian artisans start producing more textiles and porcelains?

Because demand for luxury goods rose across Afro-Eurasia between 1200–1450, artisans in China, Persia, and India expanded textile and porcelain production to sell into bigger, richer markets. Improved networks (Silk Roads, Indian Ocean routes), safer travel under Mongol-era connections, and commercial innovations (caravanserai, bills of exchange, money economies) lowered transport and transaction costs, so exports became more profitable. Urban growth and wealthy merchant and court patrons created steady demand; states sometimes supported specialized workshops (e.g., Chinese porcelain kilns, Indian cotton workshops). Greater productive capacity and techniques also let artisans make more goods for export without sacrificing quality. This is exactly the kind of economic change the Unit 2 CED highlights (Topic 2.7, Learning Objective L). For a concise review and practice Qs tied to this topic, see Fiveable’s study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and practice problems (https://library.fiveable.me/practice/ap-world-history).

How did expanding trade networks change social and gender structures?

Expanding trade networks (Silk Roads, Indian Ocean, Trans-Saharan) reshaped social and gender structures by shifting who had wealth, work, and mobility. Increased long-distance trade grew merchant and artisan classes in places like Samarkand, Swahili city-states, and Chinese port cities; money economies, bills of exchange, and caravanserai supported that growth. Urbanization and commercial production (textiles, porcelain, iron/steel) expanded wage and workshop work—women often moved from household production to market-oriented textile work in some regions, while elite women’s roles could be constrained even as mercantile families gained influence. Demand for labor also intensified slavery and coerced labor across routes, changing household compositions and gendered labor divisions. For AP tasks, link these changes to causation and continuity/change in short answers and LEQs—use specific examples (e.g., Timbuktu, Swahili merchants, Chinese porcelain producers). For a focused review, see the Topic 2.7 study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and practice questions (https://library.fiveable.me/practice/ap-world-history).

What innovations in transportation made long-distance trade easier?

Long-distance trade got a lot easier because people improved both vehicles and navigation. Key transportation innovations from c.1200–1450 included caravanserai (safe caravan inns) and improved camel saddles that let caravans cross the Silk Roads and Trans-Saharan routes with heavier loads; larger, multi-masted ships like Chinese junks and Indian Ocean dhows with lateen sails that handled monsoon winds; and better ports and harbors in Swahili city-states and Indian Ocean ports. Navigation tech—compass, astrolabe, and improved charts—plus credit instruments (bills of exchange) and paper money reduced risk and sped up trade. These changes widened routes, boosted volume of luxury-goods exchange, and appear often on AP questions about networks of exchange (Topic 2.7). For a focused review, see the Topic 2.7 study guide (https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and practice 1000+ problems on Fiveable (https://library.fiveable.me/practice/ap-world-history) to prep for short-answer and multiple-choice items.

I missed class - can someone explain how trade networks led to cultural and technological diffusion?

Trade networks spread ideas and tech because people moved with goods, not just stuff. Merchants, pilgrims, and sailors used routes like the Silk Roads, Indian Ocean, and Trans-Saharan routes and stopped at hubs (Samarkand, Timbuktu, Swahili city-states) and caravanserai—so cultural contact was constant. Innovations—dhows and Chinese junks, the astrolabe, paper money, and bills of exchange—made longer voyages and more credit possible, speeding exchanges. That meant religions (especially Islam and Buddhism), artistic styles, mathematical ideas, paper and printing techniques, and new crops/trades spread across Afro-Eurasia. On the AP, you’ll need to connect these mechanisms to specific examples and broader effects (context/causation) in SAQs or DBQs. Review Topic 2.7 on Fiveable (study guide: https://library.fiveable.me/ap-world-history/unit-2/comparison-trade-1200-1450/study-guide/LN1k1NASEqJtFVzV7EDs) and practice questions (https://library.fiveable.me/practice/ap-world-history).