The Aztec Empire, also known as the Triple Alliance (Classical Nahuatl: Ēxcān Tlahtōlōyān, [ˈjéːʃkaːn̥ t͡ɬaʔtoːˈlóːjaːn̥]) or historiographically as the Tenochca Empire but most accurately known as the Mexica, was an alliance of three Nahua city-states: Mexico-Tenochtitlan, Tetzcoco, and Tlacopan. These three city-states ruled that area in and around the Valley of Mexico from 1428 until the combined forces of the Spanish conquistadores and their native allies who ruled under Hernán Cortés defeated them in 1521. Its people and civil society are historiographically referred to as the Aztecs or the Culhua-Mexica.
The alliance was formed from the victorious factions of a civil war fought between the city of Azcapotzalco and its former tributary provinces. Despite the initial conception of the empire as an alliance of three self-governed city-states, the capital Tenochtitlan became dominant militarily. By the time the Spanish arrived in 1519, the lands of the alliance were effectively ruled from Tenochtitlan, while other partners of the alliance had taken subsidiary roles.
The alliance waged wars of conquest and expanded after its formation. The alliance controlled most of central Mexico at its height, as well as some more distant territories within Mesoamerica, such as the Xoconochco province, an Aztec exclave near the present-day Guatemalan border. Aztec rule has been described as hegemonic or indirect. The Aztecs left rulers of conquered cities in power so long as they agreed to pay semi-annual tribute to the alliance, as well as supply military forces when needed for the Aztec war efforts. In return, the imperial authority offered protection and political stability and facilitated an integrated economic network of diverse lands and peoples who had significant local autonomy.
Aztec religion was a monistic pantheism in which the Nahua concept of teotl was construed as the supreme god Ometeotl, as well as a diverse pantheon of lesser gods and manifestations of nature. The popular religion tended to embrace the mythological and polytheistic aspects, and the empire's state religion sponsored both the monism of the upper classes and the popular heterodoxies. The empire even officially recognized the largest cults such that the deity was represented in the central temple precinct of the capital Tenochtitlan. The imperial cult was specifically that of the distinctive warlike patron god of the Mexica Huītzilōpōchtli. Peoples were allowed to retain and freely continue their own religious traditions in conquered provinces so long as they added the imperial god Huītzilōpōchtli to their local pantheons.
Etymology and definitions
The word Aztec in modern usage would not have been used by the people themselves. It has variously been used to refer to the Aztecs or Triple Alliance, the Nahuatl-speaking people of central Mexico prior to the Spanish conquest, or specifically the Mexica ethnicity of the Nahuatl-speaking tribes (from tlaca). The name comes from the singular Nahuatl word aztecatl (Nahuatl pronunciation: [asˈtekat͡ɬ]) that means "[people] from Aztlan", reflecting the mythical place of origin for Nahua peoples.
History
Before the Aztec Empire
Nahua peoples descended from Chichimec peoples, who migrated to central Mexico from the north (mainly centered sparsely around present-day states of Zacatecas, San Luis Potosí, and Guanajuato) in the early 13th century. The migration story of the Mexica is similar to those of other polities in central Mexico, with supernatural sites, individuals, and events, joining earthly and divine history, as they sought political legitimacy. Pictographic codices in which the Aztecs recorded their history say that the empire's place of origin was called Aztlán. Early migrants settled the Basin of Mexico and surrounding lands by establishing a series of independent city-states. These early Nahua city-states or altepetl were ruled by dynastic heads called tlahtohqueh (singularly tlatoāni). Most of the existing settlements had been established by other indigenous peoples before the Mexica migration.
These early city-states fought various small-scale wars with each other but no individual city gained dominance due to shifting alliances. The Mexica were the last of the Nahua migrants to arrive in Central Mexico. They entered the Basin of Mexico around the year 1250, and, by then, most of the good agricultural land had already been claimed. The Mexica persuaded the king of Culhuacan, a small city-state but important historically as a refuge of the Toltecs to make them settle in a relatively infertile patch of land called Chapultepec (Chapoltepēc, "in the hill of grasshoppers"). The Mexica served as mercenaries for Culhuacan.
After the Mexica served Culhuacan in battle, the ruler appointed one of his daughters to rule over the Mexica. Mythological native accounts say that the Mexica instead sacrificed her by flaying her skin on the command of their god Xipe Totec. The ruler of Culhuacan attacked and used his army to drive the Mexica from Tizaapan by force when he learned of this. The Mexica moved to an island in the middle of Lake Texcoco where an eagle nested on a nopal cactus. The Mexica interpreted this as a sign from their gods and founded their new city Tenochtitlan on this island in the year ōme calli (or "Two House", 1325 AD).
Aztec warfare
The Mexica entered the Valley of Mexico as outsiders with limited resources, making military service one of the few ways they could secure protection and establish political relevance among stronger neighboring powers. Early in their history, the Mexica fought as subordinate allies of more powerful city-states, rising to prominence as fierce warriors and establishing themselves as a military power. The importance of warriors and the integral nature of warfare in Mexica political and religious life helped propel them to military dominance in the region.
The new Mexica city-state allied with the city of Azcapotzalco and paid tribute to its ruler Tezozomoc. Azcapotzalco began to expand into a small tributary empire with Mexica assistance. The Mexica ruler was not recognized as a legitimate king until this point. Mexica leaders successfully petitioned one of the kings of Culhuacan to provide a daughter to marry into the Mexica line. Their son Acamapichtli was enthroned as the first tlatoani of Tenochtitlan in 1372.
The Tepanecs of Azcapotzalco expanded their rule with help from the Mexica, while the Acolhua city of Texcoco grew in power in the eastern portion of the lake basin. Eventually, war erupted between the two states, and the Mexica played a vital role in the conquest of Texcoco. By then, Tenochtitlan had grown into a major city and was rewarded for its loyalty to the Tepanecs by receiving Texcoco as a tributary province.
Mexica warfare was marked by a focus on capturing enemies rather than killing them. Capturing enemies alive was significant because prisoners supplied the sacrificial rituals that the Mexica believed were necessary to sustain divine favor. Military achievement, in other words, was linked to sacred responsibility. Captives provided a means by which soldiers could distinguish themselves during campaigns and elevate their standing within the Mexica social hierarchy. That being said, battles were not limited to ritual purposes and could involve significant killing.
Tepanec War
In 1426, the Tepanec king Tezozomoc died, and the resulting succession crisis precipitated a civil war between potential successors. The Mexica supported Tezozomoc's preferred heir Tayahauh, who was initially enthroned as king. But his son Maxtla soon usurped the throne and turned against factions that opposed him, including the Mexica ruler Chimalpopoca. The latter died shortly thereafter, possibly assassinated by Maxtla.
The new Mexica ruler Itzcoatl continued to defy Maxtla, and he blockaded Tenochtitlan and demanded increased tribute payments. Maxtla similarly turned against the Acolhua, and the king of Texcoco Nezahualcoyotl fled into exile. Nezahualcoyotl recruited military help from the king of Huexotzinco, and the Mexica gained the support of a dissident Tepanec city called Tlacopan. In 1427, Tenochtitlan, Texcoco, Tlacopan, and Huexotzinco went to war against Azcapotzalco, emerging victorious in 1428.
After the war, Huexotzinco withdrew, and, in 1430, the three remaining cities formed a treaty now known as the Triple Alliance. The Tepanec lands were carved up among the three cities, whose leaders agreed to cooperate in future wars of conquest. Land acquired from these conquests was to be held by the three cities together. A tribute was divided so that two kings of the alliance would go to Tenochtitlan and Texcoco and one would go to Tlacopan. The three kings assumed the title "huetlatoani" ("Elder Speaker", often translated as "Emperor") in turn. Each temporarily held a de jure position above the rulers of other city-states ("tlatoani") in this role.
In the following one hundred years, the Triple Alliance of Tenochtitlan, Texcoco, and Tlacopan dominated the Valley of Mexico and extended its power to the shores of the Gulf of Mexico and the Pacific Ocean. Tenochtitlan gradually became the dominant power in the alliance. Two of the primary architects of this alliance were the half-brothers and nephews of Itzcoatl Tlacaelel and Moctezuma. Moctezuma eventually succeeded Itzcoatl as the Mexica huetlatoani in 1440. Tlacaelel occupied the newly created "Cihuacoatl" title, equivalent to something between "Prime Minister" and "Viceroy".
Shortly after the formation of the Triple Alliance, Itzcoatl and Tlacopan instigated sweeping reforms on the Aztec state and religion. It has been alleged that Tlacaelel ordered the burning of some or most of the extant Aztec books, claiming that they contained lies and that it was "not wise that all the people should know the paintings". He rewrote the history of the Aztecs thereafter, naturally placing the Mexica in a more central role.
After Moctezuma I succeeded Itzcoatl as the Mexica emperor, more reforms were instigated to maintain control over conquered cities. Uncooperative kings were replaced with puppet rulers loyal to the Mexica. A new imperial tribute system established Mexica tribute collectors that taxed the population directly, bypassing the authority of local dynasties. Nezahualcoyotl also instituted a policy in the Acolhua lands of granting subject kings tributary holdings in lands far from their capitals. This was done to create an incentive for cooperation with the empire; if a city's king rebelled, he lost the tribute he received from foreign land. Some rebellious kings were replaced by calpixqueh or appointed governors rather than dynastic rulers.
Moctezuma issued new laws that separated nobles from commoners and instituted the death penalty for adultery and other offenses. A religiously supervised school was built in every neighborhood by royal decree. Commoner neighborhoods had a school called a "telpochcalli" where they received basic religious instruction and military training. A second, more prestigious type of school called a "calmecac" served to teach the nobility, as well as commoners of high standing seeking to become priests or artisans. Moctezuma also created a new title called "quauhpilli" that could be conferred on commoners. This title was a form of non-hereditary lesser nobility awarded for outstanding military or civil service (similar to the English knight). Commoners who received this title rarely married into royal families and became kings.
One component of this reform was the creation of an institution of regulated warfare called the Flower Wars. Mesoamerican warfare overall is characterized by a strong preference for capturing live prisoners as opposed to slaughtering the enemy on the battlefield, which was considered sloppy and gratuitous. The Flower Wars are a potent manifestation of this approach to warfare. These highly ritualized wars ensured a steady, healthy supply of experienced Aztec warriors as well as a steady, healthy supply of captured enemy warriors for sacrifice to the gods. Flower wars were pre-arranged by officials on both sides and conducted specifically for the purpose of each polity collecting prisoners for sacrifice. Native historical accounts say that these wars were instigated by Tlacaelel as a means of appeasing the gods in response to a massive drought that gripped the Basin of Mexico from 1450 to 1454. The flower wars were mostly waged between the Aztec Empire and the neighboring cities of their arch-enemy Tlaxcala.
Early years of expansion
After the defeat of the Tepanecs, Itzcoatl and Nezahualcoyotl consolidated power in the Basin of Mexico and began to expand beyond its borders. The first targets for imperial expansion were Coyoacan in the Basin of Mexico and Cuauhnahuac and Huaxtepec in the modern Mexican state of Morelos. These conquests provided the new empire with a large influx of tribute, especially agricultural goods.
Itzcoatl died, and Moctezuma I was enthroned as the new Mexica emperor. The expansion of the empire was briefly halted by a major four-year drought that hit the Basin of Mexico in 1450, and several cities in Morelos had to be re-conquered after the drought subsided. Moctezuma and Nezahualcoyotl continued to expand the empire east towards the Gulf of Mexico and south into Oaxaca. In 1468, Moctezuma I died and was succeeded by his son Axayacatl. Most of Axayacatl's thirteen-year reign was spent consolidating the territory acquired under his predecessor. Motecuzoma and Nezahualcoyotl had expanded rapidly and many provinces rebelled.
Also, as the Aztec Empire was expanding and consolidating power, the Purépecha Empire in West Mexico was similarly expanding. In 1455, the Purépecha under their king Tzitzipandaquare had invaded the Toluca Valley, claiming lands previously conquered by Motecuzoma and Itzcoatl. In 1472, Axayacatl re-conquered the region and successfully defended it from Purépecha's attempts to take it back. In 1479, Axayacatl launched a major invasion of the Purépecha Empire with 32,000 Aztec soldiers. Purépecha met them just across the border with 50,000 soldiers and scored a resounding victory, killing or capturing over 90% of the Aztec army. Axayacatl himself was wounded in the battle, retreated to Tenochtitlan, and never engaged the Purépecha in battle again.