The Olmec

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On the hot alluvial flats where the rivers of the southern Gulf coast braid toward the sea, in a country of swamp and seasonal flood between the modern Mexican states of Veracruz and Tabasco, a people raised earth into platforms and dragged mountains of stone across the lowland to carve the faces of their rulers. They did this beginning more than three thousand years ago, when no city yet stood anywhere in the Americas to rival what they built. We do not know what they called themselves. The name by which they are known — Olmec, from the Nahuatl Ōlmēcatl, the rubber people, the inhabitants of the rubber country — was given them two thousand years later by the Aztec, who used it for the peoples of that gulf lowland in their own day and never knew the civilization that had vanished from it long before. The carvers left no name and, until the very end, almost no writing. What they left was the form: the plaza, the pyramid of earth, the ruler in stone, the jaguar-faced god, the ball of rubber, the count of days. These would be inherited, reworked, and carried forward by every civilization that rose in Mesoamerica after them, and it is by that inheritance that the Olmec are reckoned the formative culture of the New World.

The lowland and the river

The Olmec homeland was a narrow tropical world along the Bay of Campeche, drained by great slow rivers — the Coatzacoalcos above all — that flooded each year and left behind soil rich enough to support dense maize agriculture and a population larger than the land’s appearance would suggest. It was not an obvious cradle for a complex society. There was no stone in it. The basalt and serpentine and jade out of which the Olmec made their monuments and their most prized objects had all to be brought in, much of it from a great distance, and that fact — that everything hard and lasting in this civilization was hauled across the soft country from somewhere else — is itself a measure of the organization behind it. The wealth was in the water and the earth: fish and game in the swamps, two or three maize harvests a year on the levees, and the rubber tree, Castilla elastica, whose latex would give the region its later name and the hemisphere its oldest known game.

The chronology runs, in round figures, from about 1500 to 400 BCE — the span archaeologists of Mesoamerica call the Early and Middle Formative, or Preclassic. Within it the Olmec story is the story of a succession of great centers, each rising as the last declined, each setting the pattern the next would build on.

San Lorenzo

The earliest of the great centers was San Lorenzo, on a broad natural plateau above the Coatzacoalcos floodplain in southern Veracruz. The plateau was not left as nature made it: the Olmec reshaped its flanks with millions of cubic feet of fill, raising and squaring the ground into one of the largest constructions of its era anywhere in the world, a built landscape on which the elite quarter and the monuments stood. San Lorenzo reached its height between roughly 1200 and 900 BCE, and it was here that the defining Olmec art was first made — the colossal heads, the seated rulers on stone thrones, the precise small carvings of jade and serpentine that already show the full Olmec style without any visible apprenticeship behind them, as though arriving complete.

The end of San Lorenzo around 900 BCE was once read as catastrophe. Many of its monuments were found broken, defaced, buried in lines along a ridge, and the first excavators took this for the wreckage of invasion or revolt — the smashing of a fallen dynasty’s images. Later work has complicated that picture. The archaeologist Ann Cyphers, who excavated the site over many seasons, found that the ridge held what looks like a sculptors’ workshop, where old monuments were recut and reused, so that some of the “mutilation” may be the ordinary recycling of stone rather than the rage of an enemy. What is certain is that San Lorenzo’s primacy passed, and that the volcanic Tuxtla mountains to its north — the source of its basalt and perhaps the cause of its troubles — may have had a hand in it.

La Venta

The succession fell to La Venta, eastward across the lowland on a low island of higher ground in the swamps of Tabasco, near the Tonalá river. La Venta rose to dominance after San Lorenzo’s decline and held it from about 900 to 400 BCE, and in it the Olmec achievement reached its fullest architectural expression. At its center stood a great mound of clay more than thirty meters high — one of the earliest pyramids in Mesoamerica, the ancestor of every stepped temple-mountain that would follow it across the region for the next two and a half thousand years. Around it the builders laid out a long axial arrangement of plazas, platforms, and enclosed courts, oriented with care, in what is recognizably the template of the Mesoamerican ceremonial center: the ordered procession of open space and raised mass through which ritual and authority would move.

The most extraordinary deposits at La Venta lie buried beneath this ground. In the ceremonial court north of the pyramid, the Olmec laid down massive offerings and then covered them over, never meaning them to be seen again. There were pavements of hundreds of cut serpentine blocks, arranged into the abstract mask of a great being and immediately entombed under colored clays. There were caches of polished jade and greenstone axes — celts — set on end in rows. In one celebrated deposit, sixteen small figures of jade and serpentine were stood in a tight group before a row of upright celts, as if gathered in council or rite, and sealed beneath the plaza floor; centuries later a pit was dug down through the later flooring to check on the buried scene and then refilled, which means the Olmec themselves kept the memory of what lay underneath. To bury such wealth — jade carried hundreds of kilometers from the mountains of Guerrero and the Motagua valley of Guatemala, worked to a high finish, and then hidden in the earth — is the act of a society for which the giving of treasure to the ground was a central religious transaction, and for which the green stone itself, the color of water and young maize, carried the charge of life.

Tres Zapotes and the long twilight

When La Venta in turn declined around 400 BCE, the center of gravity shifted west and north to Tres Zapotes, in the foothills of the Tuxtlas, which carried the tradition into its terminal phase — the period scholars call epi-Olmec, the late and altered continuation of the culture after its classic centers were spent. Tres Zapotes matters out of proportion to its art, which is coarser than San Lorenzo’s, because of a single broken monument found there. Stela C bears, down one face, a date written in the bar-and-dot notation of the Mesoamerican Long Count — the absolute, day-by-day tally of elapsed time from a fixed mythic zero that the Maya would later make famous. The lower half of the stela, dug up by Matthew Stirling in 1939, gave most of the count; the missing upper portion, recovered decades afterward in 1969, confirmed the reading. The date corresponds to 32 BCE. For a long time it was the oldest Long Count date known, and it placed the invention of that calendar not among the Maya but in the Olmec and epi-Olmec country of the Gulf coast, generations before the Classic Maya cities existed. The Maya inherited the count; they did not begin it.

The colossal heads

Of everything the Olmec made, the colossal heads are the signature, and they are the clearest single window onto the society that made them. Seventeen are known — ten from San Lorenzo, four from La Venta, two from Tres Zapotes, one from a more distant site. Each is a human head carved in the round from a single boulder of basalt, the largest standing well over three meters and weighing in the neighborhood of twenty-five tons, and each wears a close-fitting headdress, helmet-like and individually distinct, often compared to the gear of a ballplayer or a warrior. The faces are not idealized types but particular faces — fleshy, frowning, sharply individual — and the consensus is that they are portraits: the likenesses of individual Olmec rulers, raised as monuments to specific men who held power.

What they record, beyond a face, is the machinery of authority. The basalt did not occur at San Lorenzo or La Venta. It was quarried in the Sierra de los Tuxtlas, tens of kilometers away — by some reckonings as much as eighty or a hundred and fifty kilometers from where the finished heads were set up — and the multi-ton boulders had to be moved across that distance through swamp and forest, very probably floated on rafts down the rivers for part of the journey and dragged on sledges and rollers for the rest, then carved with stone tools and abrasives into a polished portrait. The labor in a single head — the quarrying, the haulage, the carving, the raising — is the labor of a great many people working under direction for a long time. A society that can command that, repeatedly, to glorify the face of one man has crossed into something more than a village world: it has rulers who can mobilize labor at scale and reach across long distances to procure what they want, and it advertises the fact in stone. The colossal heads are, in this sense, less art objects than the visible balance sheet of early kingship in the Americas.

The jaguar in the human face

The religion that organized this world has to be read almost entirely from its images, since the people who held it left no scripture to explain themselves. What the images give is a coherent cast of supernatural beings, recurring across centuries and across the whole Olmec area in stable combinations of traits — enough that the iconographer Peter David Joralemon was able, in a foundational 1971 study, to sort them into at least eight distinct deities. Among them are an earth-and-fertility monster with the attributes of a crocodile, sometimes called the Olmec Dragon; a maize deity from whose cleft head the corn plant springs; a bird being; a rain spirit; and, threading through them all, the figure that has come to stand for Olmec religion in the popular mind: the were-jaguar.

The were-jaguar is a strange and unmistakable composite — an infant body, or a fat infant face, with the snarling downturned mouth of a great cat, almond eyes, and a deep cleft cloven into the top of the head. It appears on every scale, from monumental sculpture to the smallest jade pendant, and it fuses the two poles of Olmec life, the human child and the apex predator of the rainforest. Older readings traced it to a literal myth of the union of a woman and a jaguar; that particular story is now doubted, but the fusion it expresses is not. The jaguar was the master of the Olmec forest, the killer that moved between water, earth, and the trees, and the merging of jaguar and human runs through a whole class of Olmec carvings — the so-called transformation figures, which show a person caught midway in becoming a beast. These belong to a religious world in which the boundary between human and animal was permeable to those with the power to cross it, and in which rulers were very likely the chief crossers. Olmec rulership and Olmec religion were not separate institutions. The ruler whose face was cut into the basalt was also the principal figure of the cult, the human point through which the powers of the cosmos were channeled, served by — and perhaps overlapping with — a class of full-time religious specialists, the earliest priests of Mesoamerica, and by practitioners of ecstatic transformation. The great buried offerings of jade, and the deposits at the waterlogged shrine of El Manatí near San Lorenzo — where wooden busts, rubber balls, stone axes, and the bones of infants were sunk into a spring as gifts to the powers of the water — show that the giving over of valued things, and of life, to the sacred was built into the order from the beginning, the formative ancestor of the sacrifice that would run through all later Mesoamerican religion.

The game and the count

Two Olmec inventions outlived the Olmec so completely that they became the common property of every Mesoamerican civilization, and through them the formative culture reached forward across three millennia. The first is the ballgame. From the bog of El Manatí have come solid rubber balls, made of the cured latex of the rubber tree blended with the sap of a morning-glory vine to give it spring, and dated to around 1600 BCE — older than San Lorenzo’s apogee and the oldest such objects anywhere. The Olmec are, on present evidence, the originators of the rubber ballgame: the ritualized contest, played with a heavy bounding ball on a court, that would become one of the defining institutions of Mesoamerica, charged with meaning about war, fertility, the movement of sun and stars, and the boundary between life and death. The very word by which the Aztec named the lowland — the rubber country — names the substance and the game the Olmec gave the world.

The second is the count of days. The Long Count of Tres Zapotes Stela C is the visible end of a long development, and the Mesoamerican calendar — the interlocking cycles of named days and the linear tally of time from a zero point — appears, on the evidence now in hand, to have taken shape in the Olmec and epi-Olmec Gulf coast before it was perfected anywhere else. With it goes the beginning of writing: the Cascajal Block, a slab of serpentine found in gravel near San Lorenzo and dated to about 900 BCE, carries sixty-two incised signs in a small repertoire of about two dozen, arranged in what looks like sequence, and is argued by its publishers to be the earliest writing yet found in the New World. The reading is contested and the script is so far unique and undeciphered, but the claim is of a piece with the rest: that the apparatus later cultures took for granted — script, the sacred calendar, the long reckoning of time — has its earliest traces in the Olmec country.

The mother-culture question

How much, then, did Mesoamerica owe to the Olmec? The question has been argued since 1942, when at a conference in Tuxtla Gutiérrez the Mexican scholars Alfonso Caso and Miguel Covarrubias proposed that the Olmec were the cultura madre, the mother culture, of all later Mesoamerican civilization — the wellspring from which the Maya, the Zapotec, the great city of Teotihuacan, and ultimately the Aztec drew their fundamental forms. The case is strong on the face of it. The pyramid, the plaza, the ballgame, the calendar and the beginnings of writing, the imagery of were-jaguar and feathered serpent, the cult of jade and of rulership in stone — these recur everywhere in later Mesoamerica, and in the Olmec they are attested first.

Against this stands the sister-culture position, argued forcefully by the archaeologists Joyce Marcus and Kent Flannery and others, who hold that complex society arose more or less simultaneously and reciprocally across several regions of Mesoamerica — the Gulf coast, the Valley of Oaxaca, the central highlands — each contributing, each borrowing, with no single donor and no single source. On this reading the Olmec were the most spectacular of a set of peer cultures, not the parent of the rest, and the apparent priority of the Gulf coast is partly an artifact of where the great early monuments happen to have survived. The debate has been sharpened by trace-element studies of early pottery, which seem to show Olmec-style vessels being exported from the Gulf coast across Mesoamerica but few coming the other way — a finding read by one side as proof of Olmec primacy and by the other as one strand in a web of exchange. It is a genuine and continuing dispute, and it turns on how one weighs first appearance against simultaneous emergence.

A separate set of claims must be set apart from the scholarly question entirely. From the nineteenth century onward, and most prominently in Ivan Van Sertima’s They Came Before Columbus of 1976, the broad features and full lips of the colossal heads have been offered as evidence that the Olmec were founded or inspired by transatlantic visitors — Africans, or the bearers of some lost Old World civilization. No genuine Old World artifact has ever been recovered from a controlled excavation anywhere in the Olmec area, and Mesoamericanist scholarship regards these diffusionist and hyperdiffusionist proposals as without foundation: the heads are stylized portraits of the indigenous people of the Gulf lowland, made by them, in a wholly American tradition. The Olmec were a New World original, raised from the resources of their own swampy country with no help from across any ocean.

Recovering a forgotten people

The Olmec had to be rediscovered, because no one in 1850 knew they had existed. The first colossal head came to notice in 1862, when José María Melgar y Serrano reported a giant stone face half-buried in a field near Tres Zapotes; he and others took its features for African, and a century of misreading began. The civilization behind the head was not recognized as a civilization, and an early one, until the Smithsonian archaeologist Matthew Stirling led a series of expeditions to the Gulf coast between 1938 and 1946 — to Tres Zapotes, San Lorenzo, La Venta, and Cerro de las Mesas — unearthing heads, thrones, and the dated Stela C, and arguing that this art belonged to a culture older than the Maya. The proposition was resisted at first by Mayanists who could not accept an earlier high civilization, and it was settled only when radiocarbon dating, applied to San Lorenzo and La Venta in the 1950s and 1960s, placed the Olmec squarely in the second millennium BCE. The standard institutional account of how the field came to be is set out in the Dumbarton Oaks survey, The Origin and Development of Olmec Research, which traces the path from Melgar through Stirling to the modern debates.

The interpretive backbone of Olmec religion remains Peter David Joralemon’s A Study of Olmec Iconography (Dumbarton Oaks, 1971) and his subsequent classification of the supernaturals, against which later iconography is still read. The chronology and excavation of the heartland sites rest on the long fieldwork of Michael D. Coe and Richard A. Diehl at San Lorenzo (In the Land of the Olmec, 1980) and the later, revisionist excavations of Ann Cyphers, whose reading of the “mutilated” monuments as a recarving workshop reshaped the question of San Lorenzo’s end. The mother-versus-sister-culture controversy is laid out from the diffusionist side by Coe and from the peer-polity side by Joyce Marcus and Kent Flannery, and was reignited by trace-element pottery sourcing in the 2000s. The claim for the earliest writing in the Americas was published by María del Carmen Rodríguez Martínez, Ponciano Ortíz Ceballos, Michael Coe, Richard Diehl, Stephen Houston, Karl Taube, and Alfredo Delgado Calderón as Oldest Writing in the New World (Science 313, 2006), reporting the Cascajal Block — a claim still debated, since the script stands alone and remains unread. A general, well-sourced overview of the civilization for the non-specialist is maintained by the World History Encyclopedia.

A formative thread

The Olmec belong to a small and remarkable category: the pristine civilizations, the handful of societies that crossed from village life into states and monuments with no model to copy, inventing complexity from the ground up. Their only true peer in the hemisphere is the contemporaneous formative society of the Peruvian coast, Norte Chico and Caral, which raised its own monumental centers in the same deep antiquity on the far side of the equator and out of utterly separate roots — the two earliest answers, north and south, to the question of how human beings first build a civilization where none has been before. The Olmec answered it on the Gulf lowland with the platform, the plaza, the count of days, the rubber ball, and the ruler whose jaguar-haunted face was cut into a boulder hauled from a distant mountain.

What makes the Olmec the formative culture is not that they were grandest or longest-lived; their classic centers were spent by 400 BCE, and far larger powers rose after them. It is that the forms they invented on the Gulf lowland were the ones the rest of Mesoamerica chose to build with. The stepped pyramid above the ordered plaza, the offering buried in the earth, the contest on the ballcourt, the day kept by name and number, the green stone prized above gold, the lord who is also the channel of the sacred and whose likeness is set in lasting stone — each of these took its first shape in the swamp country of San Lorenzo and La Venta, and each was raised again, in turn, by the Maya in their lowland cities, by the Zapotec at Monte Albán, by the builders of Teotihuacan, and at the last by the Aztec, who looked back across two thousand years at the rubber country and named, without quite knowing what they named, the people who had begun it. The colossal heads, each a ruler’s portrait cut from basalt hauled scores of miles, and the masses of jade and serpentine buried as offerings in the floors of the courts, are the Olmec’s own undisputed work — the earliest monumental sculpture and the earliest massed wealth-offering of Mesoamerica, whatever the cultures that followed did or did not take from them.

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