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Contact: Natasha Pinol
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American Association for the Advancement of Science

For ancient Maya, a hodgepodge of cultural exchanges

Study shows that ancient Maya civilization interacted with more than just Olmecs

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IMAGE: This shows the excavation of Platform A-24 at Ceibal, Guatemala, which revealed the oldest monumental construction in the Maya lowlands.

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The ancient Maya civilization of Mesoamerica may have developed its unique culture and architecture via contact with many other groups—not just exclusive contact with the Olmec people or on its own, without any outside influences, as researchers have debated. According to a new study, the plazas and pyramids at Ceibal, an ancient Maya site in Guatemala, probably arose from broad cultural exchanges that took place across southern Mesoamerica from about 1,000 to 700 BCE.

“The extent of the connection of the Mayans to earlier cultures along the Gulf of Mexico, known as the Olmec, has been especially contentious,” said Andrew Sugden, Science’s deputy editor, from his Cambridge, United Kingdom office during a press teleconference. “This work adds new layers of complexity and detail to a fascinating period in the history of the Americas.”

Until now, two theories have dominated the debate concerning the origin of the Maya civilization: one suggesting that the Maya developed almost entirely on their own in what is now southern Mexico, Guatemala, and Belize, and another suggesting that the older Olmec civilization was the Maya’s dominant cultural influence. Takeshi Inomata and Daniela Triadan, a husband-and-wife team from the University of Arizona in Tucson, along with colleagues from the U.S. and Japan, however, found that neither of these theories could tell the full story of the Maya.

“In terms of the origins of lowland Maya civilization, their relationship [with the Olmec] is always a focus of debate,” explained Inomata, professor at the University of Arizona’s School of Anthropology. “We’re now saying that it probably wasn’t just the Olmec, but a lot of other groups—for example, those living in central Chiapas and those on the southern Pacific coast—that had a lot of important interactions with the lowland Maya.”

The researchers’ report appears in the 26 April issue of the journal Science, which is published by AAAS, the international non-profit science society.

IMAGE: This is an early residential structure found at the East Court of Ceibal, Guatemala.

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“A formal ceremonial complex with a plaza, mounds, and a platform was built at the beginning of the occupation at Ceibal around 1,000 BCE,” Inomata said. “This makes Ceibal’s ceremonial complex the earliest in the Maya lowlands, predating other comparable examples by roughly 200 years.”

“We concluded that it was not until 800 BCE that La Venta became a large, influential center,” he explained. “So, the foundation of Ceibal did not happen under the direct influence of La Venta.”

By the time sedentary communities began appearing in the Maya lowlands of southern Mexico, Guatemala, and Belize during what’s known as the early Middle Preclassic period—from about 1,000 to 700 BCE—the Gulf Coast Olmec were already well-established in nearby regions, researchers say. Given this timeline, many anthropologists have viewed the Olmec as a “mother culture,” or one that provided cultural innovations, such as art styles and political structure, to other populations.

The coastal Olmec hub of La Venta, for example, hosted architectural styles that were likewise found at Ceibal. But, Inomata and the other researchers now provide radiocarbon dating measurements taken from some of the ceremonial structures at Ceibal, like plazas and platforms, which predate the growth of La Venta as a major center by as much as two centuries.

“We chose samples carefully from thousands of charcoal particles and the huge number of radiocarbon dates enabled us to build a precise radiocarbon chronology for Ceibal,” said Hitoshi Yonenobu during the teleconference from Japan, who specializes in radiocarbon dating and is an associate professor at Naruto University of Education in Tokushima Prefecture. “My early career as a wood anatomist was useful for this work.”

These findings imply that La Venta could not have been the primary influence on Ceibal that researchers once thought it was. Instead, Inomata and his team suggest that both Ceibal and La Venta participated in a broader cultural shift that was taking place in Mesoamerica between about 1,150 and 800 BCE.

AUDIO: Listen to an April 25, 2013, press teleconference about the Science paper by Dr. Inomata et al.

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“The main complex at Ceibal is made up of a plaza area, a western platform or pyramid and an eastern mound,” said Inomata. “This is generally known as an ‘E-Group Assemblage,’ and they can be found across southern Mesoamerica.” Many researchers have resisted using the term to refer to the structures at La Venta, since it was originally coined to describe Mayan architecture. But, Inomata and his team argue that the ceremonial constructions at La Venta should also be classified as such E-Group Assemblages.

“Possibly, their uses were very similar,” Inomata continued. “Ritual was very important to these civilizations, and there is a series of ritual deposits in the plaza at Ceibal… Such rituals often included greenstone axes, made from jade or other imported, precious stones, which were deposited [in the plaza] as a kind of offering.”

Such ritualistic offerings have been found elsewhere in southern Mesoamerica, including two contemporaneous sites in Chiapas, Mexico.

Inomata and his team suggest that E-Group Assemblages at Ceibal began as small structures, just two meters tall. But, with continuous renovation, the ceremonial constructions grew taller and taller, eventually becoming pyramids, which became very important to the later Maya people.

“We began our work at Ceibal in 2005, and this paper represents the results of seven seasons of fieldwork,” said Daniela Triadan, an associate professor at the University of Arizona’s School of Anthropology who specializes in ceramics and the analysis of their chemical compositions. “Reaching the earliest occupation levels at Ceibal was truly challenging. The site was occupied for about 2,000 years and the earliest buildings are buried under 21-54 feet of later constructions, so we had to develop excavation strategies that addressed these challenges.”

“Many of our workers come from the Q’eqchi’ Maya village of Las Pozas,” said Kazuo Aoyama, professor at the University of Ibaraki, during the telebriefing from Japan. “In total, more than 30 researchers and more than 60 local workers have made up our team.”

Taken together, the researchers’ findings do not suggest that the Maya civilization was older than the Olmec culture, nor do they prove that the Maya developed independently. Instead, they show that the Maya actively participated in a major social shift that took place over a wide area.

“We are seeing this new form of architecture, which probably reflects a new form of society and social order,” says Inomata. “This new form of social order emerged not from one center, such as the Gulf Coast Olmec, but through broad interactions among diverse groups, including the lowland Maya.”

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The report by Inomata et al. was supported by the National Geographic Society; the National Science Foundation; the National Endowment for the Humanities; the Japanese Ministry of Education, Culture, Sports, Science and Technology; the Japan Society for the Promotion of Science and the Alphawood Foundation.

The American Association for the Advancement of Science (AAAS) is the world's largest general scientific society, and publisher of the journal, Science as well as Science Translational Medicine and Science Signaling. AAAS was founded in 1848, and includes 261 affiliated societies and academies of science, serving 10 million individuals. Science has the largest paid circulation of any peer-reviewed general science journal in the world, with an estimated total readership of 1 million. The non-profit AAAS is open to all and fulfills its mission to "advance science and serve society" through initiatives in science policy, international programs, science education, and more. For the latest research news, log onto EurekAlert!, www.eurekalert.org, the premier science-news Web site, a service of AAAS.



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