UNIT 2: Networks of Exchange (Notes)

The Silk Roads (2.1)
  • Essential Question: What caused and what came from the growth of trade routes after 1200?

  • Understand the Context

    • Between 1200 and 1450, trade on existing routes grew a lot.

    • Key reasons: new tools and ways of doing business, empires getting bigger, and people wanting fancy goods.

    • More trade meant faster sharing of ideas, sicknesses, and tools across Europe, Asia, and Africa.

  • Factors that Expanded Trade

    • Powerful countries and empires helped trade routes grow bigger and reach further.

    • The Mongol Empire made trade safer on the Silk Roads, creating a huge network for buying and selling across Europe and Asia.

    • Trade paths across the Sahara Desert and in the Indian Ocean added West and East Africa to this network.

    • Better ways of doing business, like new forms of credit (loans), made larger trade networks possible.

    • Main reasons for trade: more people wanted expensive items (like silk and porcelain from China; gold from Africa).

  • Consequences of Trade

    • Important new trading cities appeared across Africa and Europe.

    • People from different cultures met and exchanged ideas as merchants and travelers went far and wide, spreading religions (like Islam) and new inventions (like making paper, gunpowder).

    • Very bad diseases, especially the Black Death (bubonic plague), spread quickly.

  • Timeline Highlights (some events and dates)

    • 1200: Mongols conquer the Abbasid Caliphate and start making the Silk Road better.

    • 1258: Muslim learner Ibn Battuta starts trips to Asia, Europe, and Africa.

    • 1325: A sickness called the Black Death starts to hurt Europe badly.

    • 1347: Margery Kempe, who wrote one of the first life stories in English, dies.

    • 1235: Sundiata builds the Mali Empire in West Africa.

    • 1324: West African ruler Mansa Musa goes on a grand religious trip to Mecca.

    • 1405: Chinese admiral Zheng He starts seven big sea journeys across the Indian Ocean.

    • 1417: The Central Asian trading city of Samarkand begins building a grand Islamic school.

  • The Silk Roads

    • The Silk Roads, which became active again in the 8th–9th centuries after being quiet for a long time, were busy and key for trade between regions in the 14th–15th centuries.

    • Demand for luxury items grew in Europe and Africa; Chinese, Persian, and Indian craft workers made more cloths and ceramics to sell to other countries.

    • Groups of traders with camels (caravans) made travel safer and easier; the Chinese created a system using paper money to handle the increasing trade.

    • Trade between different regions on the Silk Roads did very well.

  • Causes of the Growth of Exchange Networks

    • The Crusades helped trade networks grow: lords and knights brought back fancy cloths and spices from the East.

    • Even though the Byzantine Empire lost land to the Ottoman Turks, the Silk Roads and sea routes kept busy.

    • China wanted Europe’s gold and silver; Europe wanted silk, tea, and rhubarb.

    • World trade grew; Europeans had not yet sailed around the tip of Africa (Cape of Good Hope), but trade over land in Europe kept going for hundreds of years.

  • Rise of New Empires

    • After the Roman and Han empires fell, the Abbasids brought the Silk Roads back to life in the 8th–9th centuries.

    • Tang China brought useful inventions to world trade: the compass, paper, and gunpowder.

    • China sold porcelain, tea, silk; they bought cotton, valuable stones, pomegranates, dates, horses, grapes.

    • Under Mongol rule, roads that were once separate were joined into one big trading system.

    • The Mongols improved roads and caught robbers, making travel and trade safer.

    • New trade paths linked Asia, the Middle East, Africa, and Europe.

    • People who lived through the conquests benefited from these renewed routes, which hadn't been used much since Roman/Han times.

  • Improvements in Transportation Technologies

    • Traveling in caravans became safer; better designs for camel saddles meant camels could carry more goods.

    • Han China's inventions: the magnetic compass and a better rudder helped ships know where they were going and steer better.

    • The Chinese junk: a big ship with many sails, up to about 400 feet long; separate parts in the hull made it stronger and less likely to sink.

  • Effects of the Growth of Exchange Networks

    • Oases (green spots in deserts) and cities along the routes became busy trade centers; Kashgar and Samarkand are good examples.

    • Caravanserai: roadside inns about 100 miles apart, where travelers and animals could rest; the name comes from Persian words for caravan and palace.

    • New Business Ideas to manage more trade:

    • Flying cash: a paper money system where you could put money in one place and take it out in a distant place.

    • Banking houses and bills of exchange: papers that promised to pay a certain amount of money on a certain date.

    • The Crusades made Europeans want Asian luxury goods; the Hanseatic League formed in the 13th century to control trade in the North and Baltic Seas.

    • Hanseatic League: a group of trading cities in northern Germany (like Lubeck, Hamburg, Riga) that controlled sales of certain goods (wood, grain, animal skins, salted fish); it lasted until the mid-17th century as countries grew stronger and protected their merchants.

  • Innovations in Commerce (Overview Table, 500 B.C.E. to 1603 C.E.)

    • Financial Tool – What it is – Where/When it started

    • Coin – Metal money with real value – around 500 B.C.E. (Lydia, Turkey)

    • Caravanserai – Inns along trade routes for travelers and animals – around 500 B.C.E. (Persian Empire)

    • Paper Money – Money made of paper – around 800 C.E. (China)

    • Banking House – Early form of modern banks – around 200 B.C.E. (China)

    • Bill of Exchange – A written order to pay a fixed amount on a set date without extra fees – around 700 C.E. (China)

    • Hanseatic League – A shared market and group of merchants – 1296 C.E. (Germany)

  • Increase in Demand

    • More people wanting fancy goods from Europe, Asia, and Africa caused more production.

    • Craft workers made more silk and cloth and sold more porcelain; China started making more iron/steel in an early form of industry.

  • Key Terms by Theme (The Silk Roads)

    • TECHNOLOGY: sea travel – magnetic compass, rudder, junk (ship)

    • GOVERNMENT: new empires – Mongol Empire

    • CULTURE: trade cities – Kashgar, Samarkand

    • ECONOMICS: new ideas – caravanserai, money system, flying cash, paper money, banking houses, bill of exchange, Hanseatic League


The Mongol Empire and the Modern World (2.2)
  • Essential Question: How did big empires in Europe and Asia grow over time, and how did they make trade and talking between places better?

  • The Mongols and Their Surroundings

    • In the 12th century, groups of nomads lived north of the Gobi Desert; their tough life on the open plains made Mongol culture strong.

    • Society's values: all men and women trained to ride horses; bravery in hunting and fighting; strong personal loyalty; very harsh in war (like killing stepbrothers).

    • The Mongols wanted wealth from near the Silk Road routes; valuable goods like silk and gold were very important to them.

  • Genghis Khan

    • Temujin (born in 1162) gained power by making friends with tribes and getting rivals to join him; he chose leaders based on skill, not family; sometimes he picked people outside his family for important jobs.

    • 1206: Temujin was chosen as khan (leader) at a big meeting (kuriltai) and took the name Genghis Khan, meaning “ruler of all.”

  • The Beginning of Conquest

    • 1210: Genghis Khan attacked the Jin Empire (northern China and Manchuria) and became known for his very cruel way of fighting wars.

    • 1219: He conquered the Kara Khitai and the Khwarazm Empire; by 1227, his empire stretched from the North China Sea to eastern Persia.

    • Mongol army tactics included skilled horse riders, short bows, well-ordered groups, and quick messages.

    • New war methods: units that mapped the land; fake retreats to trick enemies; small attacks first to ask enemies to give up, then big attacks.

  • Genghis Khan at War

    • They used the war tools of the people they conquered: weapons for attacking castles, moving towers, and better catapults.

    • A system like a pony express for fast spoken messages over long distances.

  • Genghis Khan at Peace (Pax Mongolica)

    • Capital city was Karakorum; he talked with wise people from Chinese and Islamic backgrounds; he supported building bridges and large structures.

    • He allowed all religions (Buddhists, Daoists, Muslims, Jews, and Christians) to practice freely; he made it safe for merchants and travelers.

    • Protecting the Silk Roads made trade better and helped the Silk Roads have a third great period of success.

    • Mongol rule: tried to make one set of laws for all their lands; the Uyghur writing style was changed for Mongol (it didn't completely succeed, but its influence is still seen in Mongolia today).

  • Mongol Empire Expands

    • Three grandsons started their own parts of the empire (khanates): Batu (Golden Horde), Ilkhanate, Chaghatai Khanate; Kublai Khan started the Yuan Dynasty in China.

    • This growth increased the sharing of culture and goods across Asia and Europe.

  • Batu and the Golden Horde

    • 1236: Batu led 100,000 soldiers into Russia; Kiev was robbed in 1240.

    • Western Europe at first welcomed Mongol trade but became angry as the Horde took over Christian lands.

    • Mongols ruled northern Russia indirectly through leaders in Moscow who paid money and built up their military; fighting against this led to the Battle of Kulikovo (1380), and the Horde became weaker by the mid-16th century.

  • The Mongols’ Long-Term Impacts on Russia

    • Caused much destruction, but later led to stronger leaders and military setup; being cut off from Western Europe helped Russia form its own identity and develop as a country.

  • Hulegu and the Islamic Heartlands (Il-khanate)

    • 1258: Hulegu’s forces attacked Baghdad, killing the caliph (leader) and hundreds of thousands of people; they then threatened lands to the west held by the Mamluks.

    • 1260: They were defeated by an alliance of Mamluks and Christians; the Il-khanate used Persians as government workers; they got better at collecting taxes.

    • Islam became widespread after Hulegu and many of the Il-khanate rulers converted; many Jews and Christians were killed after this conversion.

  • Kublai Khan and the Yuan Dynasty

    • 1260: Kublai Khan became the Great Khan; 1271: he finished conquering China; he started the Yuan Dynasty and rebuilt the capital city (Dadu, now Beijing).

    • Rule: he allowed all religions (Buddhists, Daoists, Muslims, Jews, Christians) to practice freely; good times came from sharing cultures and trade.

    • Mongol rule helped China's economy get strong again and made better connections across Europe and Asia; Europeans gained from more contact with Asia.

  • Mongol Women

    • Mongol women had more freedom than many others: they took care of animals, rode horses, could get married again after their husband died, and could ask for a divorce.

  • Mongol Decline and Aftermath

    • 1274: Mongols tried to conquer Japan; their failures made them less powerful in East Asia.

    • 1350s: The White Lotus Society group grew in China; 1368: The Ming Dynasty was started by Zhu Yuanzhang, ending Mongol rule.

    • By the mid- to late-14th century, Mongol power got weaker in many places; the Golden Horde fell apart in the late 1360s; Timur (Tamerlane) took over parts of Central Asia around the same time.

  • The Long-Term Impact of the Mongolian Invasions

    • The biggest land empire that was all connected in history; a time of Mongol peace (Pax Mongolica) made trade between regions across Asia, the Middle East, Africa, and Europe active again.

    • Sharing of culture and science: Islamic science went to China; paper went to Europe, leading to the Gutenberg printing press; Greek-Islamic medical knowledge and Arabic numbers went to the West.

    • The spread of the bubonic plague along trade routes; caused big health problems.

    • New ways of running government: one set of laws across many different areas; influenced how other governments were set up later.

    • New war methods changed fighting in the Middle Ages (like knights in armor becoming less important) and how castles were attacked; new tools like cannons came from Mongol attacks on castles.

  • Key Terms by Theme (The Mongol Empire and the Modern World)

    • GOVERNMENT: Northern China and Central Asia – Genghis Khan, Hulegu, Il-khanate, kuriltai (meeting), khanates (parts of empire), Pax Mongolica (Mongol peace)

    • GOVERNMENT: Russia and Western Europe – Batu, Golden Horde, Moscow

    • GOVERNMENT: China – Kublai Khan, Yuan Dynasty, Zhu Yuanzhang, Ming Dynasty

    • ENVIRONMENT: Asia – Gobi Desert

    • TECHNOLOGY: Warfare – siege weapons (for attacking castles), cannon

    • CULTURE: Writing – Uyghur alphabet

    • SOCIETY: Revolt – White Lotus Society

    • SOCIETY: Disease – bubonic plague


Exchange in the Indian Ocean (2.3)
  • Essential Question: What caused and what came from the growth of trade routes after 1200, and how did knowing about the environment help this growth?

  • Hadith and the Islamic World

    • Hadith: "Go seek knowledge, even if it's in China." (9th century)

    • Dar al-Islam joined societies from North Africa to South Asia; Muslim traders improved trade before and during Islam's spread; the Indian Ocean area became a main place for business because of sailing knowledge and understanding of the environment.

  • Causes of Expanded Exchange in the Indian Ocean

    • South Asia was in the middle of the Indian Ocean, which made trade very good for it.

    • Connections between East Africa, East/Southeast Asia, and South Asia grew as Muslim traders traveled widely.

    • Calicut and Cambay on India’s west coast became busy main trade spots where foreign traders met (e.g., Calicut for spices; traders from Arabia and China met there).

    • Local leaders welcomed Muslim and Chinese traders because their presence brought wealth and importance.

  • Spread of Islam and Environment Knowledge

    • Islam made trade networks grow faster by connecting port cities across the Indian Ocean.

    • Knowing about the sea (sailing routes, monsoon winds) was key for planning trips and market times.

    • Knowing about monsoons allowed traders to plan their trips and stay in port cities for months until the winds changed direction.

  • Increased Demand for Specialized Products

    • India: famous for good cotton cloths, rugs, strong steel, prepared leather, stone carvings; pepper from southern ports.

    • Spice Islands (Malaysia/Indonesia): nutmeg, cinnamon, cloves, cardamom.

    • East Africa Swahili coast: enslaved people, ivory, gold; tortoise shells, peacock feathers, rhino horns.

    • China: silks and porcelain were wanted all over the world; porcelain was often called “fine china” in the West.

    • Southwest Asia: horses, figs, dates.

    • Slavery: the Indian Ocean slave trade involved people taken as slaves to northern Africa, the Middle East, and India; many worked in port areas, homes, and on ships; their rights were different in different places (e.g., some could marry in Islamic groups).

  • Environmental Knowledge and Maritime Technology

    • Monsoon winds were very important for guiding ships; winter had winds from the northeast; spring/summer had winds from the southwest.

    • Naval tools: lateen sails helped catch wind from many directions; a stern rudder (at the back of the boat) made ships more stable and easier to steer; Arab dhows (boats) were common on the seas; the astrolabe helped find a ship's position.

    • Chinese stern rudder and lateen sails later influenced wider ship technology; sailing knowledge spread across the Indian Ocean world.

  • Growth of States in the Indian Ocean

    • Malacca (Melaka) became a rich city-state because it had a navy and charged money (tolls) to ships going through the Strait of Malacca.

    • Malacca grew to include Sumatra and the southern Malay Peninsula in the 1400s.

    • Portugal took over Malacca in 1511 because they wanted to control trade between Europe, India, and China; their power caused changes in the region and led to new trade routes.

  • Effects of Expanded Exchange in the Indian Ocean

    • Groups of people living far from home (Diasporic Communities): traders settled down and mixed with local people; marriages created lasting cultural sharing.

    • Swahili city-states (like Kilwa, Mombasa, Zanzibar) became rich from trading ivory, gold, and enslaved people; buildings changed from mud/clay to stone or coral in wealthy towns.

    • Cultural sharing grew stronger: Islam, Chinese porcelain, Indian cotton, and other goods moved widely; cultural influence traveled with traders.

    • Zheng He’s Voyages (Ming Dynasty)

    • 1405–1433: Zheng He led seven sea trips; his fleet had more than 300 ships and 28,000 crew.

    • His routes included Southeast Asia, India, Arabia, the Horn of Africa, and East Africa; his goals were to show off Ming China's power and receive gifts from other lands.

    • The trips brought back rare treasures (like giraffes) and made China understand the world better; some learned people worried about too much foreign influence; others said the trips cost too much money.

    • Emperor Yongle’s next ruler, Zhu Gaozhi, stopped more trips and limited shipbuilding; piracy (sea robbery) went down for a while but came back stronger after China pulled back.

  • Key Terms by Theme (The Indian Ocean)

    • GOVERNMENT: Countries – Malacca (Melaka)

    • ECONOMY: Trade – Calicut, Spice Island

    • ECONOMY: Trade – Swahili city-states

    • ENVIRONMENT: Ocean – Indian Ocean Basin; monsoon winds

    • TECHNOLOGY: Sailing – lateen sails, stern rudder, astrolabe

    • CULTURE: Changes and Sharing – Indian Ocean slave trade; diaspora (people living away from homeland); Zheng He

  • Connections, Implications, and Real-World Relevance

    • The Silk Roads, Mongol rule, and Indian Ocean networks together show how ruling power, tools, and cultural sharing shaped world connections.

    • The Mongol peace (Pax Mongolica) made it very safe for traders, allowing them to trade over longer distances and share cultures across Europe and Asia.

    • The spread of science (Islamic knowledge about stars and medicine to China; paper making to Europe, which led to the Gutenberg printing press) and tools (gunpowder, printing, navigation instruments) had big, long-lasting effects on how the world grew and became modern.

    • The rise of trading groups living away from home created lasting cultural and language marks in places far from where they started and set the stage for later world trade networks.

  • Cross-Sectional Themes and Takeaways

    • Economic: Production driven by what people wanted, systems for credit (loans), and the start of world trade paths.

    • Political: Building empires and strong central governments made clear rules for traders; more people moving and settling in new places.

    • Cultural: Spread of religions (Islam, Buddhism, Christianity), tools (compass, paper, printing), and language sharing.

    • Environmental: Knowing about monsoons and wind patterns was key for sea trade and planning for different seasons.

  • Quick Reference (Important Dates) for Review

    • 1200-1450: Time of growing trade networks across Europe, Asia, and Africa.

    • 1206: Genghis Khan chosen as leader; start of Mongol expansion.

    • 1258: Baghdad falls to Mongols; end of the Abbasid caliphate's political power.

    • 1324: Mansa Musa’s grand religious trip; showing Africa’s role in trade across the Sahara and the world.

    • 1405-1433: Zheng He’s seven big sea journeys.

    • 1511: Portuguese take Malacca, showing changes in who controlled Indian Ocean trade.

Note: This set of notes brings together the reasons, ways, and results of long-distance trade, connecting the Silk Roads, Mongol empire activities, and Indian Ocean business. It highlights how tools, government power, understanding the environment, and sharing cultures shaped connections around the world before modern times.