Templo Mayor - Discovery and Excavation

Discovery and Excavation

After the destruction of Tenochtitlan, the Templo Mayor, like most of the rest of the city, was taken apart and then covered over by the new Spanish colonial city. The Temple’s exact location was forgotten, although by the 20th century scholars had a good idea where to look for it. This was based on the archeological work done at the end of the 19th century and the first half of the 20th. Leopoldo Batres did some excavation work at the end of the 19th century under the Mexico City Metropolitan Cathedral because at this time, the temple was thought to be there. In the first decades of the 20th century, Manuel Gamio found part of the southwest corner of the temple and his finds were put on public display. However, it did not generate great public interest in excavating further as the zone was an upper-class residential area. In 1933, Emilio Cuevas found part of a staircase and beam. In 1948, Hugo Moedano and Elma Estrada Balmori excavated a platform containing serpent heads and offerings. In 1966, Eduardo Contreras and Jorge Angula excavated a chest containing offerings that was first explored by Gamio.

However, the push to fully excavate the site did not come until late in the 20th century. On 25 February 1978, workers for the electric company were digging at a place in the city then popularly known as the "island of the dogs." It was named such because it was slightly elevated over the rest of the neighborhood and when there was flooding, street dogs would congregate there. At just over two meters down they struck a pre-Hispanic monolith. This stone turned out to be a huge disk of over 3.25 meters (10.7 feet) in diameter, 30 centimeters (11.8 inches) thick and weighing 8.5 metric tons (8.4 long tons; 9.4 short tons). The relief on the stone was later determined to be Coyolxauhqui, the moon goddess, dating to the end of the 15th century.

From 1978 to 1982, specialists directed by archeologist Eduardo Matos Moctezuma worked on the project to excavate the Temple. Initial excavations found that many of the artifacts were in good enough condition to study. Efforts coalesced into the Templo Mayor Project, which was authorized by presidential decree.

To excavate, thirteen buildings in this area had to be demolished. Nine of these were built in the 1930s and four dated from the 19th century, and had preserved colonial elements. During excavations, more than 7,000 objects were found, mostly offerings including effigies, clay pots in the image of Tlaloc, skeletons of turtles, frogs, crocodiles, and fish, snail shells, coral, some gold, alabaster, Mixtec figurines, ceramic urns from Veracruz, masks from what is now Guerrero state, copper rattles, decorated skulls and knives of obsidian and flint. These objects are housed in the Templo Mayor Museum. This museum is the result of the work done since the early 1980s to rescue, preserve and research the Templo Mayor, its Sacred Precinct and all objects associated with it. The museum exists to make all of the finds available to the public.