Zachary Maldonado
HIST 370, Duke University
Primary Accounts of Mexica Advantage
Sentinel raises the alarm that Tlaxcalans and Spaniards are escaping from Tenochtitlan (Florentine Codex)
This scene in the Florentine Codex where a sentinel raises the alarm about the Spanish escaping from Tenochtitlan is charged with urgency and tension. It takes place at night, with the Spanish attempting a stealthy retreat from the Mexica capital. The sentinel, stationed to monitor the causeways, spots the Spanish moving along the canals and quickly alerts the Mexica warriors, shouting warnings that echo through the city. The canals, integral to Tenochtitlan's layout, are crucial to the narrative: the Spanish are forced to traverse narrow causeways interrupted by gaps where removable bridges were traditionally placed. However, the Mexica had removed many of these bridges to prevent such an escape, leaving the Spanish to construct makeshift crossings under the cover of darkness. The alarm triggers a swift mobilization of Mexica forces, who attack from canoes on the water and along the causeways, turning the retreat into a chaotic and deadly battle that ends up being very costly for Cortés and his forces. This scene highlights the city's unique advantages due to geographical adaptations and the strategic challenges it posed to both sides.
El Lienzo de Tlaxcala - Mexica Trap The Spaniards
The scene depicted in El Lienzo de Tlaxcala where the Mexica trap the Spaniards highlights the deadly ingenuity of Tenochtitlan's urban planning. The Mexica lured the Spaniards into the city's labyrinthine streets and canals, which were bordered by elevated causeways. These causeways served as both passages and tactical choke points. The Mexica exploited the removable wooden bridges that connected sections of the causeways, dismantling them to cut off escape routes and isolate the Spanish forces. The city's hydrological system, designed to manage the surrounding lake waters with canals, aqueducts, and chinampas, became a weapon of war. Mexica warriors attacked from canoes, using the canals to surround and outmaneuver the Spaniards, while others launched assaults from rooftops and narrow passageways. This strategic use of the city's hydrology and layout turned Tenochtitlan's infrastructure into an inescapable trap, illustrating how its unique feats of engineering doubled as defensive mechanisms.
Primary Accounts of Spanish Response to Mexica Advantage in Tenochtitlan
From Fray Bernardino de Sahagún, Florentine Codex, Book 12, Chapter 31
In Book 12, Chapter 31 of the Florentine Codex, Fray Bernardino de Sahagún recounts the dramatic Spanish assault on Tenochtitlan, where the deployment of brigantines—a fleet of small, maneuverable warships—proved pivotal. These vessels countered Mexica mastery of hydrological systems, especially their use of canoes and canal network surrounding the island city. The brigantines, armed with cannons and capable of cutting through the waters of Lake Texcoco, disrupted Mexica supply lines and outmaneuvered their canoe fleets, neutralizing a key tactical advantage. Despite being outnumbered by the Mexica warriors, the Spanish leveraged their brigantines to bombard the city’s defenses and dominate the waterways. The Mexica responded by constructing barriers in the canals and mounting desperate canoe attacks, but their efforts were overwhelmed by the brigantines’ superior firepower. The addition of these brigantines exemplifies Spanish technological superiority, and how it helped them overcome disparities in manpower and advantage. This disparity in technology and tactics also highlighted the brutal ingenuity of the Spanish forces and marked a turning point in the siege, as the once-impenetrable city became vulnerable to a form of attack that the Mexica could not possibly have anticipated. The construction of these brigantines, and the information utilized by the Spanish to conduct the operation, also represents weaponization of indigenous knowledge, specifically that of their hydrological expertise.
Historia de las Indias de Nueva España e islas de la tierra firme - Construction of the Spanish Brigantines
Diego Durán’s Historia de las Indias de Nueva España portrays the Spanish construction of brigantines during the siege of Tenochtitlan, a moment that reveals the weaponization of indigenous hydrological expertise. The Spanish, recognizing the strategic importance of Lake Texcoco and the Mexicas’ mastery of its waterways, enlisted indigenous allies—many of whom were well-versed in local hydrological practices—to construct the brigantines. These warships were specifically designed to counteract a defensive use of canals, causeways, and lake barriers, which had made Tenochtitlan nearly unassailable. The construction process involved harnessing native knowledge of buoyancy, available materials, and aquatic navigation to create vessels capable of navigating the shallow, reed-filled waters. For the Spanish, this adaptation turned Mexica hydrological innovations—designed to protect the city—into vulnerabilities, as the brigantines bypassed land-based defenses and neutralized the Mexica canoe fleets. Meanwhile, the Mexica continued to weaponize their environment, erecting canal blockades and ambush points, but the brigantines’ firepower and maneuverability overwhelmed these efforts. This interplay of hydrological expertise on both sides emphasizes the centrality of water as a battlefield in the siege, where indigenous hydrological knowledge became a double-edged sword.
