- Nazca culture
The Nazca culture (also Nasca) was the archaeological culture that flourished from 100 to 800 CE beside the dry southern coast of Peru in the river valleys of the Rio Grande de Nazca drainage and the Ica Valley (Silverman and Proulx, 2002). Having been heavily influenced by the preceding Paracas culture, which was known for extremely complex textiles, the Nazca produced an array of beautiful crafts and technologies such as ceramics, textiles, and geoglyphs (most commonly known as the Nazca lines). They also built an impressive system of underground aqueducts, known as puquios, that still function today. The Nazca Province in the Ica Region was named for this people.
Nazca society developed during the Early Intermediate Period and is generally divided into the Proto Nazca (phase 1, 100 BCE – CE 1), the Early Nazca (phases 2-4, CE 1-450), Middle Nazca (phase 5, CE 450-550) and Late Nazca (phases 6-7, CE 550-750) cultures (Vaughn, 2006).
Decline and fall of the civilization
From 500 CE, the civilization started to decline and by 750 CE the civilization had fallen completely. This was due to El Niño which triggered widespread and destructive flooding. Evidence also suggests that the Nazca people may have exacerbated the effects of these floods by gradually cutting down Prosopis pallida trees to make room for maize and cotton agriculture. These trees play an extremely important role as the ecological keystone of this landscape: in particular preventing river and wind erosion. Gradual removal of trees would have exposed the landscape to the effects of climate perturbations such as El Niño, leading to erosion and leaving irrigation systems high and dry (see Beresford-Jones et al. 2009).
Early Nazca society was made up of local chiefdoms and regional centers of power centered around Cahuachi, a non-urban ceremonial site of earthwork mounds and plazas (Valdez, 1994). Scholars have developed theories resulting from various excavations at Cahuachi and suggest that the site was the center for rituals and feasting relating to agriculture, water, and fertility. This may have been as a result of environmental deterioration; the eventual collapse of the center may have also been a result of that decline (Valdez, 1994). Cahuachi lies in the lower portion of the Nazca Valley and was initially occupied during the late Paracas phase. It is unique among all other Nazca sites in the region and it is the most important site for the study of ancient Nazca culture (Valdez, 1995). The people modified the natural 'huacas (hills) into pyramid mounds for ceremonial and religious purposes.
Excavations at Cahuachi have given archaeologists key insights into the culture. The material remains found at the site included large amounts of polychrome pottery, plain and fancy textiles, trace amounts of gold and spondylus shell, and an array of ritual paraphernalia. The remains of pottery found at Cahuachi led archaeologists to believe that the site was specifically non-urban and ceremonial in nature. The ratio of plain, utilitarian pottery to fine, polychrome pottery was 30% to 70% (Silverman, 1988). If it was an urban center, for example, the amount of utilitarian ceramics would have probably been higher. Among the foodstuffs found were the Three Sisters: maize, squash, and beans; as well as peanuts, and some fish.
Construction at Cahuachi ceased. It appears that the site was abandoned at the very end of Nazca 3/early Nazca 4. Although there are many possible reasons for the collapse of Cahuachi, most scholars believe that the cessation of ceremonial use of the site is associated with the pan-Andean drought (Valdez, 1994). Later (post-Cahuachi) Nazca society was structured in a similar fashion as it had been before, but less of an emphasis was made in constructing large architectural complexes like those at Cahuachi (Silverman and Proulx, 2002).
Likely related to the arid and extreme nature of the environment, Nazca religious beliefs were centered around agriculture and fertility. Much of Nazca art depicts powerful nature gods, such as the mythical killer whale, the harvesters, the mythical spotted cat, the serpentine creature, and the most prevalent of worshiped figures, the anthropomorphic mythical being. Much as in the contemporary Moche culture based in northwest Peru, shamans apparently used hallucinogenic drugs, such as extractions from the San Pedro cactus, to induce visions. The use of such substances is also depicted in art found on pottery related to the Nazca (Silverman and Proulx, 2002). Religious events and ceremonies took place in Cahuachi. The people worshipped the nature gods to aid in the growth of agriculture.
During this time, all members of the society in surrounding villages would migrate to the center and participate in feasting as well. Non-elites could obtain highly valued goods, such as fancy polychrome pottery, through feasting. In exchange, the elites could enhance their political power and status while co-opting the commoners into labor and construction of the site (Silverman, 1988).
The debate over the purpose of trophy heads continues to this day, whether they were trophies of war or objects of ritual. Visual depictions of decapitations often associate the decapitators with weapons and military-like dress, but such garments could have been worn in purely ceremonial circumstances as well (DeLeonardis, 2000). The term 'trophy head' was coined by the archaeologist Max Uhle, who considered the depiction of severed heads in ancient Peruvian art to correspond to trophies of warfare (Silverman and Proulx, 2002). Researchers noted that all the heads had one modification in common- a hole in the forehead through which a rope could be affixed, presumably so that the severed head can be displayed or carried. This added to the consensus that these were trophy heads (Browne, Silverman, and Garcia, 1993).
Many burials of Nazca individuals are what is known as 'partial burials'. Partial burials typically include bundles of limbs, caches of severed heads, or bodies that are missing several parts (DeLeonardis, 2000). Several burials have been discovered in which the head of the skeleton is missing and is replaced with what is most commonly referred to as a 'head jar'. The head jar is a ceramic vessel with a human head painted on it, along with trees and plants sprouting from the head.
During the Middle Nazca period, the number of severed heads appeared to have increased dramatically, judging from the remains. In the late Nazca period, the number tapered off, although the practice of decapitation remained a popular one in this period (DeLeonardis, 2000). Late Nazca iconography suggests that the prestige of the leaders of Late Nazca society was enhanced by successful headhunting (Browne, Silverman, and Garcia, 2003).
Nazca subsistence was based largely on agriculture. Iconography on ceramics and excavated remains indicate that the Nazca people had a varied diet, composed of maize, squash, sweet potato, manioc and achira, and even a small trace of various fish. They also used several non-food crops, such as cotton for textiles, coca, San Pedro cactus, and gourds. The latter were decorated to illustrate activities in daily life. The evidence of coca in society can be seen through remains but also through ceramics. This is the same for the hallucinogenic San Pedro cactus, which has been illustrated in ceremonies on several polychrome pots and bowls. In terms of animal resources, the Nazca made sacrifices of llamas and guinea pigs at Cahuachi. Llamas were also commonly exploited as pack animals, for their wool, and as a source of meat (Silverman and Proulx, 2002).
As archaeological evidence indicates thus far, sometime during the Middle Nazca period, the Nazca people created an aqueduct system to sustain life in the exceedingly arid environment. The exact date of construction of the puquios has been under contention for some time now. Dating of the puquios is quite difficult because of the materials involved in their construction. Attempts at dating the trenches have also been difficult as the puquios were found by excavation. This destroyed early context that might have been interpreted (Schreiber and Rojas, 1995). The most promising techniques used to date them thus far has been the AMS (accelerator mass spectrometry) analysis of varnish that has collected on the rocks inside the puquios, as well as the study of settlement patterns in the area (Clarkson and Dorn, 1995). These techniques have placed the original construction of the puquios at the Middle Nazca period, as indicated above.
The irrigation system was made up of underground channels, known as puquios, which tapped into the subsurface water. The channels were dug into the mountainside until they reached the aquifers under the surface. The channels were lined with river rocks. They did not use any mortar so that the water would pass into the channels. The water was transported to irrigation canals (acequias) in order to directly supply water for agricultural purposes, or the water was deposited into small reservoirs (kochas) for later use (Schreiber and Rojas, 1995). Numerous access holes or ojos (eyes) were placed along the surface of the underground channels and operated much in the same way that modern manholes do. People would descend into the puquios in order to clear obstructions or make repairs (Schreiber and Rojas, 1995). It is difficult to tell how long these underground channels are because extant puquios have been altered and many of the puquios are too dangerous to explore underground. The length of the puquios are estimated by measuring the distances covered by the ojos (Schreiber and Rojas, 1995).
Many of the channels remain in use to this day. This also testifies to their importance to generations of ancient people in the arid environment. With modern use, people have altered the puquios to be used more efficiently, including installing motorized pumps. In some cases, the kochas have been lined with concrete in order to hold the water better (Schreiber and Rojas, 1995). Some of the best-preserved channels are those located in Cantalloc. (Silverman, 1988)
Arts and technology
The Nazca culture is characterized by its beautiful polychrome pottery, painted with at least 15 distinct colors. The shift from post-fire resin painting to pre-fire slip painting marked the end of Paracas-style pottery and the beginning of Nazca-style pottery. The use of pre-fire slip painting meant that a great deal of experimentation took place in order to know which slips produced certain colors. Major pottery shapes include double-spout bottles, bowls, cups, vases, effigy forms, and mythical creatures. Archaeologists have excavated highly valued polychrome pottery among all classes of Nazca society, illustrating that it was not just the elite that had access to them. Commoners were able to obtain these goods through feasting and pilgrimages to Cahuachi. In addition, clays matching the chemical signature of polychrome pottery found all over the Southern Nazca Region have been found near Cahuachi. However, there is no substantial evidence of pottery production at Cahuachi. The site was most likely a redistribution center for ceramics (Vaughn and Neff, 2000).
The Nazca pottery sequence has been divided into nine phases. Visual depictions found on pottery from Phase 1 (also called Proto-Nazca) incorporated realistic subject matter such as fruits, plants, people, and animals. Realism increased in importance in the following three phases (2, 3, 4) referred to as the Monumental phases. The pottery from these phases include renditions of their main subject matter against a bold red, black, or white background.
In the next phase, Nazca 5, considerable experimentation occurred, including the addition of rays, volutes, and other "proliferous" attachments to the supernatural motifs on the vessels. Phase 5 is called Transitional, since it bridges the change in style between the naturalism of Phases 2-4 and the proliferous elements added to the motifs in Phases 6 and 7.
Nazca 6, and 7 include some of the earlier motifs but also emphasizes militaristic ones, suggesting a shift in social organization. The motifs in these phases include abstract elements as part of the design. Large numbers of rays and tassels are appended to many of the designs, particularly those depicting mythical subjects, producing a visual impression of almost infinitely multiplied elements, an impression which accounts for the use of the term 'proliferous' (Roark 1965:2). Art found on pottery in relation to Nazca phases 6 and 7 also display an influence from the Moche culture of north coastal Peru. Finally, Nazca 8 saw the introduction of completely disjointed figures and a geometric iconography which is difficult to decipher. Phases 8 and 9 are now believed to date to the Middle Horizon, reflecting a shift in power from the coast to the highlands with the advent of the Wari culture about 650 CE. (Silverman and Proulx, 2002).
The Nazca, like all other Pre-Columbian societies in South America including the Inca, had no writing system, in contrast to the contemporary Maya of Mesoamerica. The iconography or symbols on their ceramics served as a means of communication. The motifs depicted on Nazca pottery fall into two major categories: sacred and profane. The Nazca believed in powerful nature spirits who were thought to control most aspects of life. The Nazca visualized these nature spirits in the form of mythical beings, creatures having a combination of human and animal/bird/fish characteristics, and painted them onto their pottery. These Mythical Beings include such varieties as the Anthropomorphic Mythical Being, Horrible Bird, Mythical Killer Whale, Spotted Cat, etc. (Proulx 2006). Scenes of warfare, decapitation, and the ritual use of human trophy heads by shamans reflect other aspects of Nazca culture.
The Nazca are also known for their technically complex textiles. The textiles were most likely woven by women at habitation sites from spun cotton and wool (Silverman and Proulx, 2002). The textiles would have been made using a backstrap loom. This is similar to the way textiles are made in the region today (Silverman and Proulx, 2002). Textiles were woven with the common motifs earlier than they appeared painted on pottery. The dry desert has preserved the textiles of both the Nazca and Paracas cultures, which comprise most of what is known about early textiles in the region.
Shawls, dresses, tunics, belts, and bags have been found through excavations at Cahuachi and elsewhere. Many textiles associated with the Nazca culture are garments that were included with grave goods found at burial sites. Almost every body found is wrapped (sometimes partially) in a textile as a part of burial ritual. These textiles are found with partial burials as well. Often piles of bones are found wrapped in a textile garment (DeLeonardis, 2000). The deposits of dresses and shawls contained both high-status garments (with feathers, painting, embroidery) and plain garments, suggesting different social roles or responsibilities. Mary Frame's extensive analysis of textiles from Cahuachi has revealed more about Nazca women. She noted that although the women are rarely recognized in the archaeological record, they had ready access to high-status materials and the right to wear potent imagery on their garments (Frame, 2003), which gave an indication of their status. A large portion of dresses were found portraying birds with speckled bodies, double-headed serpentine figures, and anthropomorphic figures.
The geoglyphs of Nazca or "Nazca Lines" are a series of geometric shapes, miles of lines, and large drawings of animal figures (some as large as a football field) constructed on the desert floor in the Nazca region (Aveni, 2000). Many theories have arisen about the great geoglyphs. A large number of people over an extended period of time could have constructed the lines. Researchers have demonstrated techniques to see how this was done.
By extending a rope between two posts and removing the red pebbles on the desert surface along the rope, the lines could be constructed. The contrast of the red desert pebbles and the lighter earth beneath would make the lines visible from a high altitude. Due to the simplistic construction of the geoglyphs, regular amounts of rainfall would have easily eroded the drawings but the dry desert environment has preserved the lines for hundreds of years.
The purpose of the lines continues to be debated. Some researchers theorize they were created for the gods to look upon them from above, while others suggest they were some sort of calendar with astronomical alignments that would aid in planting and harvesting of crops. Others have thought the lines were the pathways for important ceremonial processions (Aveni, 2000). The lines have been studied by experts of several disciplines. Anthropologists, archaeologists, and astronomers have all studied the lines (Silverman and Proulx, 2002) have not found conclusive evidence for any of the theories as to purpose (Aveni, 2000). It is unlikely that we will discover the true purpose of the geoglyphs.
Trephination and cranial manipulation
Trephination was a primitive skull surgery used by the Nazca that relieved pressure on the brain from battle wounds or for ritual purposes. It entails the removal of one or more sections of bone from the skull (while the person is still alive). Evidence of trephination has been seen through the analysis of excavated skulls. Some of the skulls show signs of healing, evidence that some individuals who underwent the procedure had survived.
Elongated skulls, as a result of skull manipulation, were also seen in the excavations from Cahuachi. This effect was achieved by binding a cushion to an infant's forehead and a board to the back of the head. Archaeologists can only speculate as to why this was done to some of the skulls. Several theories suggest skull manipulation created an ethnic identity, formed the individual into a social being, or may have illustrated social status. (Silverman and Proulx, 2002)
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