AP®︎ World History Unit 2: Notes & Study Guide

Prepare for your quiz, test, or the AP exam with a comprehensive review on Unit 2 of AP World History – Networks of Exchange.

Exam weight: 8%–10%
7 Topics

Unit 2: Networks of Exchange

This unit explores the growing interconnectedness of Afro-Eurasia through major trade routes such as the Silk Roads, Indian Ocean, and Trans-Saharan networks. It examines the economic, cultural, and environmental effects of increased trade and the role of empires and merchants in facilitating global exchange.

Begin with Topic 2.1: The Silk Roads

To review Unit 2, go through each of the 7 topics below.

Everything you actually need to know for your Unit 2 test, pulled directly from the AP® World History: Modern curriculum.

Topic 2.1
~6 min
Review
The Silk Roads
The Silk Roads
  • What the Silk Roads Were
  • Why Silk Roads Trade Expanded After 1200
  • How Increased Trade Changed Cities
Review
Topic 2.2
~7 min
Review
The Mongol Empire and the Making of the Modern World
The Mongol Empire and the Making of the Modern World
  • How the Mongols Built an Empire
  • The Four Khanates
  • How Mongol Rule Expanded Trade and Communication
Review
Topic 2.3
~9 min
Review
Exchange in the Indian Ocean
Exchange in the Indian Ocean
  • How Indian Ocean Trade Expanded After 1200
  • What Made Indian Ocean Trade Grow
  • Port Cities and States That Grew from Trade
Review
Topic 2.4
~6 min
Review
Trans-Saharan Trade Routes
Trans-Saharan Trade Routes
  • How Trans-Saharan Trade Worked
  • Why Trade Expanded After 1200
  • How Mali Strengthened Trade
Review
Topic 2.5
~8 min
Review
Cultural Consequences of Connectivity
Cultural Consequences of Connectivity
  • How Connectivity Spread Culture Across Afro-Eurasia
  • Religions and Cultural Traditions on the Move
  • Literature, Art, and Technology That Spread Through the Networks
Review
Topic 2.6
~8 min
Review
Environmental Consequences of Connectivity
Environmental Consequences of Connectivity
  • How Afro-Eurasian Connectivity Moved Living Things
  • Crops That Spread and Changed Agriculture
  • How Crop Diffusion Reshaped Population and Landscapes
Review
Topic 2.7
~7 min
Review
Comparison of Economic Exchange
Comparison of Economic Exchange
  • How Afro-Eurasian Trade Networks Expanded After 1200
  • What All Three Networks Had in Common
  • How Each Network Worked
Review

Notes

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