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Unit 2: Networks of Exchange (c. 1200 to c. 1450): the trade routes that connected Afro-Eurasia

7 dot points across 7 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

How do historians compare the causes and effects of the major trade networks of the period?

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.
11 min answer →

How did the trade networks spread religions, technologies, and ideas across Afro-Eurasia?

Topic 2.5 Cultural Consequences of Connectivity: the spread of religions, technologies, scientific and literary ideas, and the circulation of travellers across the trade networks.
A focused answer to AP World History Topic 2.5, explaining how the trade networks spread religions such as Islam and Buddhism, transferred technologies like paper and gunpowder, carried scientific and literary ideas, and circulated travellers such as Ibn Battuta and Marco Polo.
12 min answer →

How did the spread of crops and disease along the trade networks reshape populations and environments?

Topic 2.6 Environmental Consequences of Connectivity: the diffusion of crops and agricultural practices and the spread of disease, above all the Black Death, along the trade networks.
A focused answer to AP World History Topic 2.6, explaining how the trade networks spread crops such as Champa rice and citrus, transformed agriculture and populations, and carried the Black Death across Eurasia and North Africa, killing a large share of the population.
12 min answer →

How did the monsoon winds and maritime technology make the Indian Ocean the busiest trade network of the period?

Topic 2.3 Exchange in the Indian Ocean: the causes and effects of the growth of Indian Ocean trade, including the technologies, goods, and diasporic communities it produced.
A focused answer to AP World History Topic 2.3, explaining how monsoon winds and maritime technologies such as the dhow, compass, and astrolabe drove Indian Ocean trade, the bulk and luxury goods it carried, the rise of the Swahili city-states, and its diasporic merchant communities.
12 min answer →

How did the Mongol Empire reshape Eurasia by uniting it under one rule and accelerating exchange across it?

Topic 2.2 The Mongol Empire and the Making of the Modern World: the rise and rule of the Mongol Empire and its effects on trade, technology transfer, and the connectivity of Eurasia.
A focused answer to AP World History Topic 2.2, explaining how the Mongols built the largest land empire in history, the Pax Mongolica that secured Eurasian trade, and the technology and cultural transfers their conquests accelerated across the continent.
12 min answer →

How did commercial and technological innovations expand the Silk Roads and the goods, ideas, and people that travelled them?

Topic 2.1 The Silk Roads: the causes and effects of the growth of the Silk Road trade network, including the commercial innovations and goods that flowed along it.
A focused answer to AP World History Topic 2.1, explaining how commercial innovations such as the caravanserai, money economies, and credit expanded the Silk Roads, the luxury goods and ideas that travelled them, and the diasporic merchant communities they created.
12 min answer →

How did the camel and Islamic networks turn the Sahara from a barrier into a highway of trade?

Topic 2.4 Trans-Saharan Trade Routes: the causes and effects of the growth of trans-Saharan trade, including the camel, the goods exchanged, and the empires it sustained.
A focused answer to AP World History Topic 2.4, explaining how the camel saddle and caravans, the gold-for-salt exchange, and Islamic commercial networks drove trans-Saharan trade, and how it built West African empires such as Mali.
12 min answer →