Networks of Exchange (1200-1450)

Trade routes facilitated cultural, religious, and economic exchange, leading to cultural diffusion.
Major trade routes include the Silk Road, Indian Ocean network, and Trans-Saharan network.
Increased geographic scale and influence of these networks led to greater interconnectivity, contributing to the growth of cities and states.

The Silk Road spanned across Eurasia, facilitating the trade of luxury goods like silk and porcelain.
Increased demand for these goods led to increased production.
Innovations in transportation, such as caravanserai (roadside inns), provided safety and support for travelers along the routes.
Commercial practices like paper money and the "flying money" system (early forms of checks) facilitated trade.
Banking houses emerged, enabling financial transactions and further boosting trade.
Trading cities like Kashgar flourished as attractive and hospitable rest stops along the Silk Road.

The Indian Ocean network expanded significantly, aided by monsoon winds.
Basic commodities like spices were traded in large quantities.
Technological innovations such as the compass, astrolabe, and new ship designs enhanced trade capabilities. The astrolabe allowed sailors to measure the stars.
Commercial practices like various forms of credit became common.
Swahili city-states along Africa's east coast grew powerful and wealthy, becoming centers of Islamic culture.
Diasporic communities formed as people settled in regions outside their ethnic homelands.
A new language, Swahili, emerged as a result of this interaction.
Zheng He was sent by the Ming Dynasty across the Indian Ocean to expand trade.

The Trans-Saharan network expanded, driven by the use of camels and other innovations.
Empires like Mali grew wealthy by taxing trade, particularly in gold and salt.
Mansa Musa's reign further increased trade and Mali's prominence.

Cultural exchange: Transfer of religions and belief systems: Buddhism entered China via the Silk Road.
Literary and artistic exchange: Greek and Roman classics were translated into Arabic, with extensive commentaries and advancements in philosophy and medicine.
Scientific and technological innovation: Gunpowder originated in China and spread through Muslim empires to Europe, revolutionizing warfare and state power.
Rise and fall of cities: Hangzhou became increasingly wealthy and organized, while Baghdad was ruined by Mongol armies.

Ibn Battuta traveled extensively throughout Dar al-Islam for over 30 years, documenting his experiences and providing insights into life and trade networks of that time.

Transfer of crops: Champa rice was introduced to China from the Champa kingdom as part of the tribute system. This led to increased food production and population growth.
Disease transfer: The Bubonic Plague, which first erupted in China in 1341, spread along trade networks, carried by fleas and rodents, causing widespread death.

The Mongol Empire established the largest land-based empire in history, replacing the Song Dynasty and Abbasid Caliphate.
Networks of exchange increased significantly under Mongol control, as they provided safety and continuity.
The Mongols encouraged international trade and facilitated the transfer of technology and culture.
They created conditions for the transfer of Greek and Islamic medical knowledge.
The Mongols adopted the Uyghur script and created a weaker Turkic-Mongol script.
The period of relative peace and stability under Mongol rule is known as Pax Mongolica.