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Vocabulary practice flashcards covering political structures, economic systems, religious institutions, and cross-cultural exchanges across High Medieval Europe and post-classical societies in the Americas and Oceania.
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Theme System
The Byzantine administrative and military arrangement that historically supported free peasant farmers who served in imperial armies, whose erosion during the 1000s shifted land to wealthy estates and diminished state tax revenues and military manpower.
Battle of Manzikert
A major clash in 1071 in which Seljuk Turks defeated the Byzantine army, sparking civil war and stripping the Byzantine Empire of Anatolia, its critical agricultural heartland.
Fourth Crusade
A military expedition from 1202 to 1204 in which Venetian-backed western crusaders attacked and sacked Constantinople, leaving the Byzantine Empire permanently weakened.

Bronze Horses of St. Mark's
Looted Roman/Byzantine equestrian statues taken from Constantinople during the Fourth Crusade in 1204 and mounted on the facade of St. Mark's Basilica in Venice.
Holy Roman Empire
A decentralized regional state dominating German lands, formally founded when the pope crowned Otto I of Saxony emperor in 962 as a Christian revival of the Roman Empire.
Investiture Contest
A prolonged jurisdictional struggle between popes and secular emperors regarding the authority to appoint local church officials, culminating when Pope Gregory VII banned lay investiture and excommunicated Emperor Henry IV.
Emperor Henry IV
The Holy Roman Emperor who defied Pope Gregory VII's ban on lay investiture, faced rebellion from German princes following his excommunication, and stood barefoot in the snow at Canossa to beg papal mercy.
Frederick I Barbarossa
The Holy Roman Emperor who reigned from 1152 to 1190 and attempted to conquer and incorporate wealthy northern Italy before papal-led alliances forced him to surrender his claims.
Hugh Capet
A French noble elected king in 987 whose small realm around Paris developed into a centralized monarchy over three centuries under the Capetian dynasty.
William the Conqueror
The Duke of Normandy who conquered England in 1066, establishing a tightly organized monarchy where the monarch retained title to all land, built fortifications, and ruled through disciplined feudal vassals.

Bayeux Tapestry
An embroidered textile narrative documenting the Norman invasion of England by William the Conqueror and the Battle of Hastings in 1066.
Hanseatic League (Hansa)
A well-organized commercial network of north German and Baltic cities stretching from Novgorod to London that coordinated trade in grain, fish, timber, pitch, and furs.
Champagne Fairs
Year-round seasonal trading fairs operating in northeastern France that functioned as a vital commercial junction connecting Italian Mediterranean merchants with northern European traders.
Bills of Exchange
Commercial credit slips (letters of credit) developed in medieval Europe that allowed long-distance merchants to travel and execute business transactions safely without carrying physical specie.
Three Estates
The medieval European conceptual framework that organized society into three distinct orders: those who pray (clergy), those who fight (nobles), and those who work (peasants and serfs).
Chivalry
An idealized code of noble ethics and martial behavior fostered by aristocratic society and endorsed by the church to moderate warfare and lawlessness among armed knights.
Troubadours
A class of lyric poets, songwriters, and performers who popularized conventions of romantic love and chivalric devotion in European aristocratic courts, heavily patronized by figures such as Eleanor of Aquitaine.
Guilds
Urban associations formed by specialized merchants and artisans that set prices, established production standards, regulated training and apprenticeships, and provided mutual aid to their members.
Scholasticism
A medieval intellectual tradition centered in universities that reconciled Roman Catholic theological doctrine with classical philosophy, particularly the logical treatises of Aristotle.
St. Thomas Aquinas
A prominent scholastic theologian and professor (1225–1274) at the University of Paris whose Summa Theologica synthesized Aristotelian rationalism with Christian doctrine to prove God's existence through logic.
Margery Kempe
An English Christian mystic and traveler (c. 1373–after 1438) from King's Lynn who performed pilgrimages to Jerusalem, Rome, and Santiago de Compostela and dictated what is regarded as the first English-language autobiography.
Waldensians
A medieval religious reform group that condemned the wealth and moral corruption of the clergy, asserting the right of laypeople to preach and live modest lives dedicated to poverty.
Cathars
Dualistic religious dissidents active in southern France who viewed material existence as intrinsically corrupt and were targeted for suppression by ecclesiastical and royal authorities.
Council of Clermont
A church gathering convened in 1095 where Pope Urban II responded to an appeal from the Byzantine emperor by urging Christian forces to seize Jerusalem under the rallying cry 'God wills it!'

Krak des Chevaliers
A fortified crusader castle in Syria maintained by the military order of the Knights Hospitallers as a strategic stronghold during the Crusades.
Reconquista
The protracted series of military campaigns by Iberian Christian kingdoms to recapture territory from Muslim rule, capturing Toledo in 1085 and concluding with the fall of Granada in 1492.
Mexica
Migratory Nahuatl-speaking people who entered the Valley of Mexico around 1250, established Tenochtitlan, and built the expansionist Aztec Empire.
Tenochtitlan
The island capital of the Mexica Empire, founded around 1345 in Lake Texcoco, which utilized causeways, aqueducts, and canals to accommodate a massive urban population.

Chinampas
Agricultural plots created by scooping nutrient-dense muck from the bed of Lake Texcoco and framing it with stakes, enabling up to seven agricultural harvests per year.
Triple Alliance
The Mesoamerican military pact created in the mid-1400s among Tenochtitlan, Texcoco, and Tlacopan to establish imperial control and extract tribute from roughly 12 million subjects.
Itzcóatl
The fourth Mexica tlatoani (1428–1440) who initiated aggressive imperial expansion across the Valley of Mexico and laid the political foundations of the Aztec Empire.
Calpulli
Socio-spatial kinship groups and community organizations in Mexica society that organized land cultivation, apportioned communal labor, and administered internal neighborhood affairs.
Huitzilopochtli
The Mexica patron solar and martial deity who required recurring sacrifices of human blood and captured hearts to sustain cosmic cycles and ensure military triumph.
Chimú
A powerful pre-Inca coastal state (900s–1400s) in the Andes centered at Chan Chan, characterized by extensive canal irrigation networks and urban clay architecture.
Pachacuti
The ninth Sapa Inca whose military conquests starting in 1438 expanded the Kingdom of Cuzco into an empire stretching 4,000 km across the Andean cordillera.

Quipu
A mnemonic record-keeping apparatus used by Inca administrative officials, consisting of colored, knotted cords used to log demographic data, tax assessments, and labor service.
Ayllu
The fundamental kin-based corporate community in Andean civilization, wherein collective groups shared agricultural lands, herds, and mutual labor obligations.
Mit'a
A mandatory rotating labor tax enforced by the Inca state requiring healthy adult subjects to build state roads, work state fields, construct temples, and produce textiles.

Qorikancha
The principal Incan Sun Temple in Cuzco, devoted to the solar deity Inti and lined with gold plates, over which Spanish authorities subsequently erected a Catholic monastery.
Cahokia
The premier urban center and trade crossroads of Mississippian culture (peak c. 900–1250), situated near modern-day St. Louis, that housed up to 38,000 residents.

Monks Mound
A four-tiered earthen platform mound at Cahokia rising 30 meters in height, serving as the monumental ceremonial and administrative center of the settlement.
Ancestral Puebloans
Agricultural indigenous communities of the North American Southwest that cultivated maize using river irrigation and constructed stone-and-adobe masonry complexes, including Chaco Canyon and Mesa Verde.

Cliff Palace
A well-preserved Ancestral Puebloan multi-story cliff dwelling complex located within Mesa Verde, Colorado.
Five Nations (Iroquois)
A political alliance formed around 1400 among five indigenous nations in the northeastern North American woodlands, characterized by matrilineal longhouses and village administration led by elder women.
Nan Madol
A megalithic stone administrative complex and chiefly palace built on artificial islets on Pohnpei in Micronesia between 1200 and 1600.