The INDIAN OCEAN TRADE Network

Indian Ocean Trade Network

I. Definition & Background

• A network of sea routes connecting Afro-Eurasia through trade.

• Existed long before 1200, but expanded significantly during this time period.

II. Causes of Expansion

1. Collapse of the Mongol Empire (14th Century)

   • The Mongols controlled the Silk Roads, ensuring safe trade.

   • As the Mongol Empire declined, Silk Road trade became dangerous.

   • Merchants shifted to maritime trade, increasing reliance on the Indian Ocean.

2. Innovations in Commercial Practices

   • Use of money economies and credit (similar to the Silk Roads).

   • Made trade easier and more efficient.

3. Innovations in Transportation Technology

   • Navigation tools improved:

     • Magnetic compass (helped sailors determine direction).

     • Astrolabe (measured stars for location accuracy).

   • Ship improvements:

     • Junks (large Chinese ships that carried massive cargo).

     • Dhows (Arab ships made bigger and better).

   • Monsoon winds:

     • Seasonal wind patterns allowed for predictable sailing schedules.

4. Spread of Islam

   • Islam encouraged trade (Muhammad was a merchant).

   • Created connectivity across both land and sea routes.

III. Effects of Expansion

1. Growth of Powerful Trade Cities

   • Swahili City-States (East Africa)

     • Grew wealthy through trade of gold, ivory, and enslaved people.

     • Built mosques and public works with trade wealth.

   • Malacca (Southeast Asia)

     • Controlled the Strait of Malacca (a key entry point for the trade network).

     • Grew wealthy by taxing ships that passed through.

   • Gujarat (West India)

     • Midpoint between East/Southeast Asia and Africa.

     • Traded cotton textiles, indigo, and agricultural goods.

     • Taxed ships like Malacca, increasing wealth.

2. Diaspora Communities

   • Definition: Groups of people from one place who settle in another, while keeping their culture.

   • Examples:

     • Chinese merchants in Southeast Asia.

     • Arab & Persian merchants in East Africa.

   • These communities acted as connective tissue, strengthening trade ties.

3. Cultural & Technological Transfers

   • Just as important as goods traded.

   • Religions, languages, and technologies spread across the region.

   • Zheng He’s Voyages (Ming Dynasty, China)

     • Sailed the Indian Ocean with a massive fleet (~300 ships, 27,000 men).

     • Brought gunpowder cannons, later adopted in many regions.

     • Encouraged state-led trade partnerships.

IV. Key Takeaways

• The Indian Ocean Trade Network expanded due to the decline of the Mongols, technological advances, and Islamic influence.

• It led to wealthy trading cities, diaspora communities, and cultural diffusion.

• Trade routes spread not only goods but also knowledge, religion, and technology.

Merchants in Diasporic Communities