Coyolxauhqui Stone

The Coyolxauhqui Stone is a circular andesite relief about 3.25 metres across showing the goddess Coyolxauhqui, She of the Bells on Her Cheeks, decapitated and dismembered, her severed limbs and head arranged around her torso. Carved around 1473, it was set at the foot of the stairway on the Huitzilopochtli side of the Templo Mayor in Tenochtitlan. Its chance rediscovery by electrical workers in February 1978 set off the modern excavation of the Templo Mayor beneath the centre of Mexico City.

The Coyolxauhqui Stone was discovered on 21 February 1978, when electrical utility workers digging in downtown Mexico City struck a massive carved monolith, a find that led directly to the major excavation of the Templo Mayor, the principal temple precinct of the Mexica capital Tenochtitlan, previously known only from colonial-era descriptions rather than from direct archaeological access. The find prompted the Mexican government to expropriate and demolish colonial-era buildings standing on top of the previously inaccessible temple precinct, enabling the systematic excavation of the Templo Mayor that continues in phases today, making the Coyolxauhqui Stone's 1978 discovery a documented turning point in the archaeology of the Aztec capital rather than an isolated find.

The monument makes visible the founding myth of the war god Huitzilopochtli. The earth goddess Coatlicue conceives him; his sister Coyolxauhqui leads their four hundred siblings to kill their mother; Huitzilopochtli is born fully armed, kills Coyolxauhqui and casts her broken body down the hill of Coatepec. The stone sits at the base of the temple stairs precisely where her body would have fallen, so that victims cast down the steps came to rest on the image of the defeated goddess. The 1978 discovery and the programme directed by Eduardo Matos Moctezuma recovered the monolith and thousands of buried offerings and reoriented Mexican archaeology toward the Mexica capital.

The carved relief depicts the goddess Coyolxauhqui dismembered, her limbs severed from her torso, illustrating the Mexica myth in which she led her four hundred siblings, the Centzon Huitznahua, against their mother Coatlicue and was killed and dismembered by her brother Huitzilopochtli, the war and sun deity, immediately upon his miraculous birth. The stone was found at the base of the Templo Mayor's Huitzilopochtli-dedicated staircase, a placement archaeologists read as a deliberate architectural re-enactment: victims of ritual sacrifice at the temple's summit were, according to some interpretations, thrown down the stairs to land symbolically upon the defeated goddess's image.

The monolith is authenticated by its excavation in place at the foot of the Templo Mayor, and its identification with Coyolxauhqui and its role in the Huitzilopochtli myth rest on the iconography and the find-location rather than on later reconstruction. Discovered andesite relief, carved bells on the cheeks and the dismembered posture together fix the subject securely. The stone is the centrepiece of the on-site Museo del Templo Mayor, displayed so that it can be viewed from above, the vantage from which it was designed to be seen at the base of the pyramid stairway.

The stone's authenticity and archaeological context are not in dispute; unlike several other objects recorded in this atlas, it was recovered through controlled excavation immediately following its 1978 discovery, directed by Mexican archaeologists under the Instituto Nacional de Antropologia e Historia, and it remains in that institution's custody and display context at the Museo del Templo Mayor. The genuinely open questions concern interpretation, how literally the myth of Coyolxauhqui's dismemberment maps onto historical sacrificial practice at the temple, rather than any doubt about the object's material authenticity or find circumstances.