Monte Alban is a monumental construction in Mexico, North America. UNESCO World Heritage List: Historic Centre of Oaxaca and Archaeological Site of Monte Alban gives its chronology as “c. 500 BCE to 850 CE.” UNESCO World Heritage List: Historic Centre of Oaxaca and Archaeological Site of Monte Alban also records: “Capital city.”
A Zapotec capital built on a leveled mountaintop.
What makes it extraordinary
Astronomical Alignment of Building J
Building J stands out in the Main Plaza due to its unique arrow-like shape and an orientation that deviates from the site's other structures. Research indicates the building served an astronomical purpose; its steps are aligned perpendicularly to the rising of the star Capella. A person looking through a doorway on the building would have faced the star directly. This alignment is significant because Capella's heliacal rising occurred within a day of the sun passing directly overhead at Monte Albán, suggesting sophisticated celestial observation by the Zapotec.
Temple Architecture and Solar Alignment
The temples at Monte Albán typically followed a characteristic two-room floor plan consisting of a communal front porch and a more private rear sanctuary. These sacred spaces were likely dedicated to royal ancestors who served as intermediaries to the deity Cocijo. Most of these temples were oriented to face east or west, aligning with the path of the sun. While early structures on the western side of the plaza were rotated south of east, later constructions were more precisely aligned with the cardinal directions, reflecting evolving construction methods over the city's history.
The Danzantes Stone Monuments
Monte Albán features over 300 carved stone monuments known as 'Danzantes' (dancers), primarily located near Building L. Dating to the site's earliest occupation period (Monte Albán I), these stones depict naked men in contorted poses, some showing genital mutilation. While 19th-century observers interpreted them as dancers, modern consensus identifies them as tortured and sacrificed war prisoners, possibly leaders from competing centers. These figures exhibit physical traits characteristic of Olmec culture and are often accompanied by early examples of Zapotec writing and calendrical notation.
Conquest Slabs and Territorial Expansion
Building J contains more than 40 carved slabs dating to the Monte Albán II period, which Alfonso Caso identified as 'conquest slabs.' These stones depict place-names, often accompanied by upside-down heads, representing territories the Monte Albán elites claimed to have conquered or controlled. Archaeological surveys and excavations in regions like the Cañada de Cuicatlán in northern Oaxaca have confirmed Zapotec military expansion into these areas, supporting the historical narrative recorded on the slabs. This expansion helped Monte Albán become a dominant regional polity in the Oaxacan highlands.
Artificial Ridge Leveling and Elevation
The civic-ceremonial center of Monte Albán is situated on a low mountainous range in the central Valley of Oaxaca, rising approximately 400 meters (1,300 feet) above the valley floor. To accommodate the monumental core, the Zapotec builders artificially leveled a ridge at an elevation of 1,940 meters (6,400 feet) above mean sea level. This strategic location, where the Etla, Tlacolula, and Zimatlán branches of the valley meet, provided an easily defensible position for the pre-eminent socio-political and economic center of the Zapotec people.
Seismic-Resistant Construction Techniques
The architects of Monte Albán incorporated specific engineering features to mitigate the threat of earthquakes. Construction methods for larger and taller structures frequently utilized thick walls and sloped sides to increase stability. These design choices reflect an adaptation to the region's seismic activity. Additionally, the layout of the Main Plaza avoids perfect symmetry; while it appears rectangular, the angles are not exact 90-degree corners, and the distances between various buildings vary significantly, showing that rigid symmetry was not a primary concern for the Zapotec planners.
The Monte Albán Synoikism
The founding of Monte Albán around 500 BCE involved a rapid population shift known as the 'Monte Albán Synoikism.' This process saw the abandonment of earlier centers like San José Mogote in favor of a new, central urban site in a previously uninhabited 'no-man's land' buffer zone. By 300 BCE, the population reached approximately 5,200, and by the Terminal Formative period (c. 100 BCE – CE 200), it grew to 17,200. This rapid urbanization established Monte Albán as one of the largest Mesoamerican cities and the capital of an expansionist Zapotec state.
Scale and Capacity of the Main Plaza
The monumental heart of Monte Albán is the Main Plaza, a rectangular space measuring approximately 300 meters by 150 meters. Created through extensive artificial leveling of the mountaintop, the plaza was originally finished with a coating of white plaster. Archaeologists suggest the plaza was designed with the capacity to hold the city's entire population for state-sponsored rituals. It is bounded by large platforms to the north and south, while its eastern and western sides are lined with smaller platform mounds, temples, and elite residences.
Social Stratification and Urban Surveillance
The architecture of Monte Albán reflects a highly stratified society. The settlement was enclosed by massive walls up to nine meters tall and twenty meters wide, which served as both a boundary and a demonstration of elite power. Analysis by Scott Hutson suggests that monumental mounds were evenly spaced throughout the site to facilitate the surveillance of commoner households. Over time, residential architecture evolved to become more private, with elite residences featuring inner patios and stone-walled tombs adorned with murals, while commoners lived on adobe-brick terraces on the mountain slopes.
Tomb 7 and Postclassic Mixtec Reuse
Discovered by Alfonso Caso in 1932, Tomb 7 is one of the most significant archaeological finds at Monte Albán. Originally a Classic period Zapotec tomb, it was opportunistically reused during the Postclassic period for the burial of Mixtec elite individuals. These later burials were accompanied by some of the most spectacular offerings found in the Americas. The artifacts from this tomb, along with many others excavated over eighteen years by Caso, Ignacio Bernal, and Jorge Acosta, are now housed in the Museo Regional de Oaxaca and the Museo Nacional de Antropología.