🇲🇽History of Aztec Mexico and New Spain Unit 2 – Aztec Empire's Ascent

The Aztec Empire rose to power in the 14th century, originating from Aztlan and settling in the Valley of Mexico. They formed a triple alliance with Texcoco and Tlacopan, expanding through military conquests and alliances while developing a complex society and agricultural system. The empire's political structure centered around the Huey Tlatoani, supported by a hierarchical society and bureaucracy. Their military prowess, religious practices, and economic system based on agriculture, trade, and tribute allowed the Aztecs to dominate Mesoamerica until the Spanish conquest in the early 16th century.

Origins and Early Development

  • Aztecs originated from Aztlan, a mythical homeland located in northern Mexico
  • Migrated south to the Valley of Mexico in the 13th century CE
  • Initially settled on the shores of Lake Texcoco and founded the city of Tenochtitlan in 1325 CE
    • Tenochtitlan built on an island in the lake connected to the mainland by causeways
  • Formed a triple alliance with the neighboring city-states of Texcoco and Tlacopan in 1428 CE
    • Alliance known as the Aztec Empire or the Triple Alliance
  • Developed a complex system of agriculture based on chinampas (floating gardens) to support a growing population
  • Established a hierarchical society with a ruling class of nobles, warriors, and priests
  • Created a sophisticated calendar system and writing system using pictographs and ideograms

Rise to Power

  • Aztec Empire expanded rapidly through military conquests and alliances with neighboring city-states
  • Conquered the city-state of Tlatelolco in 1473 CE, gaining control over the Valley of Mexico
  • Established a tribute system where conquered territories paid regular tributes in goods and services
    • Tributes included precious metals, textiles, food, and labor
  • Developed a strong military with a focus on capturing enemies for ritual sacrifice
  • Consolidated power through strategic marriages and alliances with other Mesoamerican civilizations (Tarascans, Mixtecs)
  • Expanded trade networks throughout Mesoamerica, exchanging goods such as obsidian, turquoise, and cacao
  • Strengthened political control by appointing governors and officials to oversee conquered territories

Political Structure

  • Aztec Empire ruled by a supreme leader known as the Huey Tlatoani (Great Speaker)
    • Huey Tlatoani held both political and religious authority
    • Position was hereditary, passing from father to son
  • Beneath the Huey Tlatoani were the Tlatoani (speakers), who governed individual city-states
  • Aztec society divided into distinct social classes
    • Pipiltin (nobility) held the highest positions in government, military, and priesthood
    • Macehualtin (commoners) made up the majority of the population, working as farmers, artisans, and traders
  • Government supported by a complex bureaucracy of officials, judges, and tax collectors
  • Legal system based on a set of laws and punishments, with courts presided over by judges
  • Political alliances and tribute system maintained through diplomacy and military force

Military Conquests

  • Aztec military known for its strength, discipline, and effective strategies
  • Utilized a combination of infantry, archers, and elite warrior societies (Jaguar Knights, Eagle Warriors)
  • Employed a strategy of siege warfare, cutting off enemy cities from resources and reinforcements
  • Captured enemy soldiers for ritual sacrifice to appease the gods and demonstrate Aztec power
  • Major conquests included the city-states of Tlaxcala, Cholula, and Tenochtitlan's rival, Tlatelolco
  • Expanded the empire to its greatest extent under the rule of Huey Tlatoani Ahuitzotl (1486-1502 CE)
    • Empire stretched from the Pacific Ocean to the Gulf of Mexico at its peak
  • Military success enabled the Aztecs to extract tributes and establish political control over conquered territories

Social Organization

  • Aztec society structured as a hierarchy with distinct social classes
    • Pipiltin (nobility) held the highest positions and enjoyed privileges such as education and luxury goods
    • Macehualtin (commoners) made up the majority, working as farmers, artisans, and traders
  • Social mobility was possible through military achievement or exceptional skill in a craft or profession
  • Family served as the basic unit of society, with extended families living together in residential compounds
  • Gender roles were clearly defined, with men responsible for warfare, politics, and agriculture, while women managed households and engaged in weaving and childrearing
  • Education varied by social class, with noble children attending calmecac schools for religious and military training, while commoner children attended telpochcalli schools for practical skills
  • Slavery existed in Aztec society, with slaves acquired through conquest, punishment, or self-sale due to debt

Religious Beliefs and Practices

  • Aztec religion centered around a complex pantheon of gods and goddesses
    • Major deities included Huitzilopochtli (god of war and sun), Tlaloc (god of rain), and Quetzalcoatl (god of wind and knowledge)
  • Believed in the importance of maintaining cosmic balance through ritual sacrifice
    • Human sacrifice practiced to appease the gods and ensure the continuation of the world
  • Constructed massive pyramids and temples, such as the Templo Mayor in Tenochtitlan, to honor the gods
  • Celebrated various religious festivals throughout the year, marked by elaborate ceremonies, processions, and sacrifices
  • Practiced divination and astrology using the Aztec calendar system to guide decision-making and predict the future
  • Believed in the afterlife, with different realms for those who died in specific ways (warriors, women who died in childbirth)
  • Religious beliefs and practices deeply intertwined with political power and social order

Economic System

  • Aztec economy based on agriculture, trade, and tribute from conquered territories
  • Developed advanced agricultural techniques, such as chinampas (floating gardens), to cultivate crops like maize, beans, and squash
  • Engaged in long-distance trade with other Mesoamerican civilizations, exchanging goods like obsidian, turquoise, and cacao
  • Established a system of markets and merchants to facilitate trade within the empire
    • Major market at Tlatelolco attracted thousands of buyers and sellers daily
  • Used a form of currency based on cacao beans and standardized lengths of cotton cloth
  • Collected tributes from conquered territories in the form of goods (precious metals, textiles, food) and labor
  • Employed a system of taxation, with commoners paying taxes in goods or labor, while nobles paid in military service
  • Developed specialized crafts, such as featherwork, metalwork, and pottery, which were highly valued and traded

Key Figures and Events

  • Acamapichtli (1375-1395 CE) - First Huey Tlatoani of Tenochtitlan, established the city's political and economic foundation
  • Itzcoatl (1427-1440 CE) - Fourth Huey Tlatoani, formed the Triple Alliance and began the Aztec Empire's expansion
  • Moctezuma I (1440-1469 CE) - Fifth Huey Tlatoani, consolidated power and expanded the empire through military conquests
  • Axayacatl (1469-1481 CE) - Sixth Huey Tlatoani, conquered the rival city-state of Tlatelolco
  • Ahuitzotl (1486-1502 CE) - Eighth Huey Tlatoani, expanded the empire to its greatest extent
  • Moctezuma II (1502-1520 CE) - Ninth Huey Tlatoani, encountered the Spanish conquistador Hernán Cortés
  • Spanish Conquest (1519-1521 CE) - Led by Hernán Cortés, the Spanish allied with Aztec rivals and conquered Tenochtitlan

Legacy and Downfall

  • Aztec Empire known for its advanced civilization, with achievements in art, architecture, astronomy, and mathematics
  • Aztec culture and language (Nahuatl) continue to influence modern Mexico
  • Downfall of the Aztec Empire attributed to a combination of factors
    • Internal weaknesses, such as political instability and social inequality
    • External threats, including the Spanish conquest and the introduction of European diseases (smallpox)
  • Tenochtitlan destroyed by the Spanish and their indigenous allies in 1521 CE
    • City rebuilt as Mexico City, the capital of New Spain and later Mexico
  • Aztec codices and artifacts provide valuable insights into their history, culture, and way of life
  • Legacy of the Aztec Empire continues to inspire art, literature, and cultural pride in Mexico and beyond


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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.