Olmecs

• 1. Introduction

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  The Olmecs were carving portraits of rulers from boulders weighing up to 55 tons more than a thousand years before the rise of the Maya. They flourished in the tropical Gulf lowlands of what is now Mexico, between roughly 1200 and 400 BC, and what they built and believed shaped virtually every civilization that came after them in Mesoamerica. Seventeen of their colossal stone heads survive. Their writing may be the oldest in the Western Hemisphere. Their ballgame, their rain deity, their practice of ritual bloodletting all traveled far beyond their heartland and took root in cultures that had never heard the Nahuatl word that translates as "rubber people." Who were they, how did they build their world, and why did it collapse? Those are the questions this documentary sets out to answer.

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• 2. Rubber People

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  The name Olmec comes from a Nahuatl word composed of two parts: ōlli, meaning natural rubber, and mēcatl, meaning people. The Nahuas, including the Aztecs, applied this name to their neighbors in the Gulf lowlands because those neighbors processed rubber from the Castilla elastica tree by mixing its latex with the juice of the Ipomoea alba vine. The resulting material was used for the rubber balls at the center of the ceremonial ballgame, and that craft gave outsiders a ready label for the people who practiced it.

  The problem is that the Aztecs applied this name roughly two thousand years after the ancient civilization had disappeared. When archaeologists in the early twentieth century began uncovering ruins and artifacts in the Gulf heartland, they attached the existing name "Olmec" to the rediscovered culture before it was established that the ancient builders were not the same people the Aztecs had called rubber people. The name stuck despite the confusion. What the ancient Olmec called themselves is not known; later Mesoamerican accounts sometimes refer to them as Tamoanchan, and a contemporary scholarly term for their culture is tenocelome, meaning "mouth of the jaguar."

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• 3. Building a Civilization

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  San Lorenzo Tenochtitlan was the first major center of Olmec culture, and what made it possible was geography. The Coatzacoalcos river basin provided both transportation and alluvial soil of exceptional fertility. This environment has been compared by scholars to the Nile, Indus, Yellow River, and Mesopotamia as a productive foundation for dense settlement. That density created a surplus, and surplus created the conditions for an elite class to emerge.

  The elite class drove demand for luxury artifacts, and those objects required materials that did not exist in the Gulf lowlands. Jade came from the Motagua River valley in eastern Guatemala. Obsidian was traced to sources in the Guatemala highlands, including El Chayal and San Martin Jilotepeque, and to deposits in Puebla, at distances ranging from 200 to 400 km away. Moving those raw materials required organized trade networks reaching across Mesoamerica at a remarkably early date. Pre-Olmec farming cultures in Tabasco had roots going back to roughly 5100-4600 BC, but what is recognized today as distinctively Olmec first appeared at San Lorenzo around 1400 BC, when the combination of ecology, trade, and elite demand fused into a civilization.

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• 4. La Venta and the Great Pyramid

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  Around 900 BC, San Lorenzo was all but abandoned. Widespread destruction of many San Lorenzo monuments had occurred around the 950s BC, which may point to an internal uprising, though some scholars favor environmental causes, including rivers changing course. Whatever the mechanism, power shifted decisively to La Venta.

  La Venta then dominated Olmec life from 900 BC until its own abandonment around 400 BC. At its heart stood the Great Pyramid, the largest Mesoamerican structure of its time. Even after roughly 2,500 years of erosion it rises 34 meters above the flat landscape around it. Beneath the surface of the site, laborers deposited a thousand tons of smooth serpentine blocks, large mosaic pavements, and at least 48 separate votive offerings, including polished jade celts, pottery, figurines, and hematite mirrors. The scale of these buried offerings speaks to a society capable of mobilizing enormous collective labor, not simply for visible monuments but for deposits that would be seen by no one after burial.

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• 5. The Colossal Heads

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  Seventeen colossal heads have been unearthed to date: ten at San Lorenzo, four at La Venta, two at Tres Zapotes, and one at Rancho La Cobata. The smallest pair, at Tres Zapotes, stand 1.47 meters tall. The Rancho La Cobata head reaches 3.4 meters. Scholars estimate that the largest weigh between 25 and 55 tons.

  Every head was carved from a single block of volcanic basalt quarried in the Sierra de los Tuxtlas. Moving one of these sculptures to its final destination required an estimated 1,500 people working for three to four months, hauling or floating the stone across distances of dozens of miles. No two heads are alike; each bears a distinctive helmet-like headdress suggesting personal or group symbols, and each face carries an individuality that has led scholars to conclude these are portraits of rulers, possibly depicted as ballplayers.

  The flat-faced, thick-lipped features of the heads generated a fringe theory that the Olmec were of African origin. The vast majority of Mesoamerican researchers reject this claim. In the 1940s, the artist and art historian Miguel Covarrubias published a side-by-side comparison of Olmec artwork and the faces of modern Mexican Indians, showing very similar characteristics. Richard Diehl stated plainly that the heads depict the American Indian physical type still visible in towns such as Soteapan and Acayucan. A 2018 mitochondrial DNA study conducted at CINVESTAV on two Olmec individuals, one from San Lorenzo and one from Loma del Zapote, found in both cases the unequivocal presence of haplogroup A, a lineage characteristic of the indigenous populations of the Americas.

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• 6. Firsts and Contested Firsts

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  A dozen rubber balls dating to 1600 BC or earlier were found in the bog of El Manati, 10 km east of San Lorenzo Tenochtitlan, making them among the earliest physical evidence of the Mesoamerican ballgame. The Olmec are also strong candidates for having originated the Long Count calendar used by many later Mesoamerican civilizations. Three of the six artifacts bearing the earliest known Long Count dates were found within the Olmec heartland, though the Olmec civilization had ended by the fourth century BC, several centuries before the oldest known Long Count date artifact.

  The zero concept is tied to the same calendar system. The Long Count required zero as a place-holder within its base-20 positional numeral system, and a shell glyph served as the zero symbol. The second oldest known use of this glyph appears on Stela C at Tres Zapotes, carrying a date of 32 BC. As for writing, symbols found in 2002 at the San Andres site date to 650 BC, and the Cascajal Block, a serpentine slab bearing 62 symbols of which 28 are unique, dates to between 1100 and 900 BC. A large number of prominent archaeologists have described the Cascajal Block as the earliest known pre-Columbian writing, though others remain skeptical because the block was removed from its original archaeological context and bears no obvious resemblance to other Mesoamerican writing systems.

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• 7. Influence and the Mother Culture Debate

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  Olmec-style artifacts, designs, and iconography have been recovered hundreds of kilometers outside the Gulf heartland. In the Valley of Mexico, the site of Tlatilco contained hollow baby-face figurines and ceramics with Olmec designs. Chalcatzingo in the Valley of Morelos features Olmec-style monumental and rock art. In 2007, archaeologists unearthed Zazacatla in Morelos, about 40 km south of Mexico City, an Olmec-influenced city that covered about one square mile between 800 and 500 BC. Olmec-style monumental art also appears at Teopantecuanitlan in Guerrero, and Olmec designs are visible in the Juxtlahuaca and Oxtotitlan cave paintings.

  At the 1942 Tuxtla Gutierrez conference, archaeologist Alfonso Caso declared the Olmecs the "mother culture" of Mesoamerica, a phrase that ignited decades of debate. Radiocarbon dating confirmed the antiquity of Olmec civilization, but the mother culture question remained contested. Discoveries at sites such as Zohapilco, where some of the oldest ceramics in Mesoamerica date back nearly 5,000 years, and San Jose Mogote, which shows early irrigation systems predating the Olmec at their height, complicate any simple model of Olmec primacy. The generally accepted reading today is that Olmec-style artifacts became associated with elite status and were adopted by non-Olmec chieftains seeking to legitimize their authority, a process of cultural borrowing rather than simple diffusion from a single source.

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• 8. Collapse and Continuity

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  Between 400 and 350 BC, the population of the eastern half of the Olmec heartland dropped sharply, and the area remained sparsely inhabited until the nineteenth century. Archaeologists have proposed that severe environmental changes made the region unsuitable for large farming populations, particularly changes to the rivers that the Olmec depended on for agriculture, transport, and hunting. Those river changes may have been triggered by tectonic upheaval, subsidence, or the silting of waterways from agricultural practices. A separate theory advanced by Santley and colleagues proposes that volcanic eruptions across the Early, Late, and Terminal Formative periods forced the Olmec to relocate rather than disappear.

  The western edge of the heartland showed more continuity. The Tres Zapotes site continued to be occupied well past 400 BC, though without the defining marks of Olmec culture. What followed is labeled the Epi-Olmec, a post-Olmec culture with features similar to those found at Izapa, some 550 km to the southeast. Meanwhile, elements of Olmec tradition survived in successor societies across Mesoamerica: the jaguar iconography, the rain deity, the ballgame, and the calendar system all carried forward. The jade face masks that Aztec priests deliberately buried in the ceremonial precinct of Tenochtitlan were approximately two thousand years old at the time of burial, suggesting that Olmec objects were collected and venerated much as Roman antiquities were preserved in medieval Europe.

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