Transoceanic Interconnections: every key term you need (+ practice quiz)
70 flashcard terms for AP World History Unit 4, written to match the course framework. Study them here, then drill them as interactive flashcards, or test yourself with the 25-question quiz — free, no account needed.
God, gold, and glory: Europeans sought new trade routes to Asia, spread Christianity, gained wealth, and pursued national prestige and personal fame.
Prince Henry the Navigator
Portuguese prince who funded maritime expeditions along the West African coast in the early 1400s, launching Portugal's overseas empire and the Age of Exploration.
Bartolomeu Dias
Portuguese explorer who rounded the Cape of Good Hope (southern tip of Africa) in 1488, proving a sea route to the Indian Ocean was possible.
Vasco da Gama
Portuguese navigator who reached India by sea in 1498, opening a direct ocean route for the spice trade and bypassing Muslim and Italian middlemen.
Christopher Columbus
Sailing for Spain in 1492, he reached the Caribbean while seeking a western route to Asia, initiating European colonization of the Americas.
Ferdinand Magellan
Portuguese navigator whose Spanish-funded expedition (1519–1522) completed the first circumnavigation of the globe, though Magellan himself was killed in the Philippines.
Treaty of Tordesillas (1494)
Agreement between Spain and Portugal dividing newly discovered lands: Portugal received the eastern half (including Brazil and Africa), Spain the western half (most of the Americas).
Caravel
A small, maneuverable Portuguese ship with lateen sails that could sail against the wind, making it ideal for coastal exploration and long ocean voyages.
Astrolabe
A navigation instrument used to determine latitude by measuring the angle of the sun or stars above the horizon. Adapted from Islamic technology.
Magnetic Compass in European Navigation
Originally Chinese, the compass reached Europe through Islamic intermediaries and became essential for open-ocean navigation beyond sight of land.
Joint-Stock Companies
Business organizations where investors pooled capital and shared risk. The Dutch East India Company (VOC) and British East India Company were the most powerful examples.
Columbian Exchange — Overview
The massive transfer of plants, animals, diseases, people, and ideas between the Americas and Afro-Eurasia following 1492. It permanently transformed ecosystems and societies worldwide.
Columbian Exchange — Crops to the Americas
Europeans brought wheat, sugarcane, rice, bananas, grapes, and coffee to the Americas, along with livestock (horses, cattle, pigs, sheep, chickens) that transformed landscapes and diets.
Columbian Exchange — Crops to Afro-Eurasia
The Americas contributed potatoes, maize (corn), tomatoes, tobacco, cacao (chocolate), squash, peppers, and peanuts — crops that revolutionized diets and fueled population growth worldwide.
Columbian Exchange — Disease Impact
European diseases (smallpox, measles, influenza, typhus) devastated indigenous American populations, killing an estimated 50–90% within a century — the largest demographic catastrophe in history.
Columbian Exchange — Horses in the Americas
Horses, reintroduced to the Americas by the Spanish, transformed indigenous cultures — Plains peoples adopted mounted hunting, and horses became central to warfare and daily life.
Columbian Exchange — Silver Flow
American silver (from Potosí and Mexican mines) flowed through global trade networks, becoming the currency that connected economies from Europe to China.
Ecological Imperialism
European colonizers transformed American ecosystems by introducing Old World plants, animals, and diseases that overwhelmed indigenous species and agricultural systems.
Potatoes and Population Growth
The American potato, adopted in Europe, provided more calories per acre than grain, contributing to a European population boom that fueled industrialization and urbanization.
Atlantic Slave Trade — Overview
The forced transportation of roughly 12.5 million enslaved Africans to the Americas between the 1500s and 1800s, primarily to work on plantations producing sugar, tobacco, cotton, and coffee.
Middle Passage
The horrific transatlantic voyage endured by enslaved Africans, packed into ships for weeks. Mortality rates reached 15–20% from disease, abuse, starvation, and suicide.
Triangular Trade
A three-legged Atlantic trade pattern: European manufactured goods → Africa (traded for enslaved people) → Americas (enslaved people sold for raw materials) → Europe.
African Kingdoms and the Slave Trade
Some African kingdoms (Dahomey, Asante, Kongo) participated in the slave trade by capturing and selling war prisoners and rivals to European traders in exchange for guns, textiles, and goods.
Plantation System
Large-scale agricultural estates in the Americas using enslaved labor to produce cash crops (sugar, tobacco, cotton, coffee) for export to Europe. Sugar plantations were the most brutal.
Chattel Slavery
A form of slavery in which enslaved people were treated as personal property — bought, sold, inherited, and denied all legal rights. It was hereditary and based on race in the Americas.
Elmina Castle
A Portuguese-built trading fort on the Gold Coast of West Africa (modern Ghana) that became a major hub for the transatlantic slave trade.
Slave Codes
Laws in the Americas that defined enslaved people as property, restricted their movement, prohibited education, and legalized brutal punishment. They codified racial hierarchy.
Resistance to Slavery
Enslaved people resisted through rebellion (Stono Rebellion, Haitian Revolution), escape (maroon communities), sabotage, work slowdowns, and cultural preservation.
Maroon Communities
Communities of escaped enslaved people in remote areas (Jamaica, Brazil, Suriname) who established independent settlements, sometimes for generations, and fought colonial forces.
Demographic Impact on Africa
The slave trade depopulated regions, destabilized kingdoms, skewed gender ratios, increased warfare, and diverted economic development — effects that lasted centuries.
Asiento System
A Spanish government contract granting a monopoly on supplying enslaved Africans to Spanish colonies. It was later held by the Portuguese, French, and British.
Sugar and Slavery Connection
Sugar production was the primary driver of the Atlantic slave trade. Sugar plantations in Brazil and the Caribbean consumed enslaved labor at horrific rates due to brutal working conditions.
Racial Hierarchy Development
The Atlantic slave trade created new racial ideologies justifying the enslavement of Africans, establishing racial hierarchies that persisted long after abolition.
Spanish Conquest — Cortés
Hernán Cortés conquered the Aztec Empire (1519–1521) with a small force, aided by indigenous allies (Tlaxcalans), European diseases, and superior weapons.
Spanish Conquest — Pizarro
Francisco Pizarro conquered the Inca Empire (1532–1533), capturing Emperor Atahualpa and exploiting a civil war between Inca factions.
Encomienda System
A Spanish colonial labor system granting colonists the right to demand tribute and labor from indigenous people in exchange for 'protection' and Christian instruction — often brutal exploitation.
Hacienda System
Large Spanish colonial estates (haciendas) that used indigenous and mestizo labor for agriculture and ranching, replacing the encomienda system in many areas.
Mita System (Spanish Colonial)
The Spanish adapted the Inca mit'a labor system, forcing indigenous people to work in silver mines (especially Potosí) under brutal conditions with high mortality.
Indentured Servitude
A labor system where workers contracted to serve a master for a fixed term (usually 4–7 years) in exchange for passage to the Americas. Used before and alongside slavery.
Casta System
The Spanish colonial racial hierarchy classifying people by ancestry: peninsulares (Spanish-born) → criollos (American-born Spanish) → mestizos → mulattos → indigenous → enslaved Africans.
Viceroyalties
Large administrative divisions of the Spanish colonial empire, each governed by a viceroy appointed by the king. Major ones included New Spain (Mexico) and Peru.
Mestizo and Mulatto Identities
Mixed-race identities that emerged from Spanish colonialism: mestizos (Spanish-indigenous) and mulattos (Spanish-African). These groups occupied intermediate positions in the casta hierarchy.
Mission System
Spanish Catholic missions established to convert indigenous peoples to Christianity. Missions also served as instruments of colonial control, disrupting indigenous cultures.
Bartolomé de las Casas
A Spanish priest who documented and protested the brutal treatment of indigenous peoples, advocating for their rights. His writings influenced the New Laws of 1542.
Portuguese Trading Post Empire
Rather than conquering territory, Portugal established a network of coastal trading posts (Goa, Malacca, Macau, Mombasa) to control maritime trade routes through strategic chokepoints.
Spanish Silver — Potosí
The massive silver mine at Potosí (modern Bolivia) produced enormous quantities of silver using forced indigenous mita labor. It became one of the world's largest cities.
Manila Galleons
Spanish trade ships connecting Manila (Philippines) with Acapulco (Mexico), carrying Chinese silk and porcelain eastward and American silver westward — linking the global economy.
Dutch East India Company (VOC)
The world's first publicly traded company (1602), which dominated the spice trade in Southeast Asia through a combination of commercial savvy and military force.
British East India Company
A joint-stock company that gradually transformed from a trading enterprise into the de facto ruler of much of India, eventually controlling more territory than the British government itself.
French Fur Trade
France's North American empire was built on the fur trade, particularly beaver pelts. French traders developed close relationships with indigenous peoples, unlike the more land-hungry English.
Mercantilism
The dominant European economic theory that national wealth was measured by gold and silver reserves. Colonies existed to provide raw materials and markets for the mother country.
Balance of Trade
A key mercantilist concept: nations should export more than they import, accumulating gold and silver. Colonies were valued for providing raw materials cheaply.
Colonial Rivalries
European powers (Spain, Portugal, England, France, Netherlands) competed fiercely for colonial territory, trade routes, and resources — fueling wars that reshaped the global map.
Jesuit Missions — Matteo Ricci
Italian Jesuit who lived in China (1583–1610), learning Chinese, adopting local dress, and attempting to reconcile Christianity with Confucianism to facilitate conversion.
Syncretic Religions — Vodou and Santería
Blended religions combining African spiritual practices with Catholicism, created by enslaved Africans in the Caribbean who merged their traditions with those forced upon them.
Catholicism in the Americas
Spanish and Portuguese colonizers aggressively spread Catholicism through missions, forced conversion, and destruction of indigenous religious sites and practices.
Forced Conversion
Colonial powers often coerced indigenous and enslaved peoples into adopting Christianity, destroying temples, banning traditional rituals, and punishing resistance.
Pueblo Revolt (1680)
Indigenous Pueblo people in New Mexico revolted against Spanish colonial rule, temporarily expelling the Spanish and restoring indigenous religious practices for 12 years.
Quilombo dos Palmares
A massive maroon community in colonial Brazil (c. 1605–1694) with a population of up to 20,000 escaped enslaved Africans, resisting Portuguese attacks for nearly a century.
Indigenous Cultural Persistence
Despite colonialism, indigenous peoples maintained cultural practices, languages, agricultural knowledge, and spiritual traditions — often blending them with imposed European elements.
Coercive Labor Systems — Comparison
The Americas used multiple systems: chattel slavery (Africans), encomienda/mita (indigenous), indentured servitude (Europeans/Asians). All were exploitative but differed in legal status and duration.
Global Silver Economy
American silver connected the world economy: flowing from Potosí → Spain → rest of Europe, and via Manila galleons → China, where silver was the primary medium of exchange.
Printing Revolution and Reformation Spread
Gutenberg's printing press accelerated the Protestant Reformation and counter-Reformation debates, spreading religious ideas that influenced European colonial motivations.
Baroque Art in the Colonies
The elaborate Baroque artistic style was used in colonial churches and missions across Latin America, blending European and indigenous artistic elements in a distinctive colonial aesthetic.
Impact on Indigenous Women
Colonization disrupted indigenous gender roles — in many societies women had significant agricultural, trade, and political roles that were undermined by European patriarchal norms.
Métis and Mixed-Race Communities
In French colonies, intermarriage between French traders and indigenous women created Métis communities with distinct identities, bridging European and Native cultures.
Treaty of Zaragoza (1529)
A follow-up to Tordesillas that divided the Pacific between Spain and Portugal, giving Spain the Philippines and Portugal the Moluccas (Spice Islands).
Columbian Exchange — Tobacco
Native American tobacco became one of the most globally traded commodities, driving colonization in Virginia and creating widespread addiction in Europe, Africa, and Asia.
European Diseases — Mechanism of Devastation
Indigenous Americans had no immunity to Eurasian diseases because the Americas had been isolated for thousands of years. Epidemics often preceded physical conquest.
Encomienda to Hacienda Transition
As indigenous populations declined from disease and the Spanish Crown restricted the encomienda, colonists shifted to the hacienda system with more diverse labor sources.