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Comparison in the Period
1200 – 1450

Master the skill of historical comparison by analyzing similarities and differences across civilizations, empires, and trade networks of the post-classical era.

AP World History

What Is Historical Comparison?

Historical comparison is the analytical skill of identifying similarities and differences between two or more historical developments, societies, or processes. On the AP exam, you must go beyond listing facts: you need to explain why those similarities or differences existed.

Why Comparison Matters

Deeper Understanding
Comparison reveals that no civilization developed in isolation: trade, religion, and conflict connected regions in complex webs.
AP Exam Points
The comparison skill appears in SAQs, LEQs, and MCQs. Mastering it can earn you multiple rubric points on free-response questions.
Critical Thinking
Moving beyond "what happened" to "how were these similar or different?" builds the analytical reasoning colleges expect.

The Period 1200 – 1450 at a Glance

c. 1200
Mongol Conquests Begin
Chinggis Khan unites Mongol tribes; largest contiguous land empire forms
c. 1235
Mali Empire Rises
Sundiata Keita founds Mali; trans-Saharan gold-salt trade flourishes
c. 1271
Yuan Dynasty Established
Kublai Khan rules China; Silk Road trade reaches its peak
c. 1325
Aztec Capital Tenochtitlan
Mexica settle Lake Texcoco; tribute empire expands in Mesoamerica
c. 1350
Black Death / Ming Dynasty
Plague reshapes Afro-Eurasia; Ming overthrow Mongol Yuan rule in China
c. 1438
Inca Empire Expands
Pachacuti consolidates Tawantinsuyu along the Andes

The Comparison Framework

SIMILARITIES Shared traits Common causes Parallel outcomes Society A Unique traits Distinct causes Local context Society B Unique traits Distinct causes Local context DIFFERENCES on each side : SIMILARITIES in the overlap

Categories of Comparison

Political
Government structures, legitimacy, bureaucracy, military organization
Economic
Trade networks, labor systems, taxation, agricultural methods
Social
Class hierarchies, gender roles, family structures, slavery
Cultural
Religion, art, architecture, intellectual traditions, language

Similarity vs. Difference

Similarity Difference
Definition A shared trait, cause, or outcome between two societies A distinct trait, cause, or outcome that sets them apart
Signal Words Both, similarly, likewise, in the same way However, in contrast, whereas, unlike
AP Tip Explain why the similarity exists Explain why the difference exists
Example Both Mongols and Mali used trade to build wealth Mongols relied on conquest; Mali relied on gold-salt trade

How to Write a Comparison

1
Identify the subjects. Clearly name the two societies, empires, or developments you are comparing.
2
Choose SPEC categories. Select at least two categories (political, economic, social, cultural) to organize your analysis.
3
State a similarity with evidence. Use specific historical evidence and explain why the similarity existed.
4
State a difference with evidence. Provide specific evidence and explain why the difference existed.
5
Explain the reason. Connect similarities/differences to broader historical processes: geography, religion, trade, or political structure.

Example: Mongol vs. Mali Empires

Mongol Empire Political: Decentralized khanates Economic: Silk Road protection / trade Social: Meritocracy in military Cultural: Religious tolerance Mali Empire Political: Centralized mansa rule Economic: Trans-Saharan gold-salt trade Social: Griots preserved oral tradition Cultural: Islam as unifying faith

Song China vs. Abbasid Caliphate

Song China
Civil service exams, Confucian meritocracy, gunpowder and printing innovations, maritime trade expansion
Abbasid Caliphate
Islamic scholarship, House of Wisdom, caliphal authority, Indian Ocean and overland trade networks

Aztec vs. Inca Empires

Aztec Tribute System Conquered peoples paid goods/labor Inca Mit'a Labor System State redistributed resources to all Both: large American empires relying on coerced labor from conquered peoples

Comparing Trade Networks

Feature Silk Road Indian Ocean Trans-Saharan
Mode Overland caravans Maritime (dhows, junks) Camel caravans
Key Goods Silk, spices, paper Spices, textiles, porcelain Gold, salt, slaves
Cultural Spread Buddhism, Islam Islam, Hinduism Islam
Key Empires Mongol, Song/Yuan Swahili city-states Mali, Songhai
Geography Central Asian steppes Monsoon winds Sahara Desert

State Building Across Regions

State Legitimacy Mongol Empire Military prowess Song China Mandate of Heaven Mali Empire Islam + lineage Delhi Sultanate Islamic law + force All states needed a source of legitimacy to maintain power

Every state in this period justified its authority differently, yet all shared the need for legitimacy: whether through divine mandate, religious law, military dominance, or hereditary lineage.

Explaining the "Why"

The AP exam rewards you for explaining causation behind similarities and differences. Here are the most common explanatory factors for 1200–1450:

1
Geography: Physical environments shaped trade routes, agricultural methods, and political boundaries (e.g., Andes vs. Mesoamerican lowlands).
2
Religion: Islam, Buddhism, Christianity, and Confucianism provided shared cultural frameworks that created similarities across vast distances.
3
Trade contacts: Regions connected by trade networks developed similar technologies and ideas; isolated regions diverged.
4
Political traditions: Existing bureaucratic or tribal traditions shaped how new states governed (e.g., Chinese civil service vs. Mongol meritocracy).

Common Mistakes to Avoid

✕ Listing Without Comparing
Writing about each society separately without explicitly stating how they are similar or different. Always use comparison language: "both," "whereas," "in contrast."
✕ Only Similarities OR Differences
A complete comparison must address both. If your response only discusses similarities, you miss half the rubric points.
✕ No Explanation of Causes
Stating that two empires "were different" is not enough. You must explain why: geography, religion, trade, or political tradition.

Summary of Key Comparisons

Comparison Key Similarity Key Difference
Mongol vs. Mali Both facilitated long-distance trade Expansion by conquest vs. commerce
Song vs. Abbasid Both centers of intellectual innovation Confucian meritocracy vs. Islamic scholarship
Aztec vs. Inca Both relied on coerced labor Tribute system vs. centralized mit'a
Silk Road vs. Indian Ocean Both spread Islam and luxury goods Overland caravans vs. maritime monsoon routes
European feudalism vs. Japanese feudalism Both decentralized with warrior elites Christian vs. Shinto/Buddhist legitimacy

Question 1 of 5

Which of the following is a similarity between the Mongol Empire and the Mali Empire during the period 1200–1450?

Question 2 of 5

A key difference between the Aztec and Inca empires was that:

Question 3 of 5

The two historians' accounts together best illustrate which comparison skill?

Question 4 of 5

Which factor best explains why Song China and the Abbasid Caliphate were both centers of intellectual innovation during the period 1200–1450?

Question 5 of 5

A student writes: "The Mongol Empire was powerful. The Mali Empire was also powerful." Why does this fail as a historical comparison?