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1491: New Revelations of the Americas Before Columbus

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About this book

The book challenges the image of two continents occupied by a few people living lightly in untouched wilderness. Evidence from the Amazon, Andes, Mexico, eastern North America, and elsewhere points to large populations and landscapes shaped by long human intervention.

Mann examines debates over population before European contact, the timing and routes of settlement, agriculture, cities, political systems, and the ecological effects of fire and cultivation. He presents competing scholarly claims rather than hiding how much remains contested.

Disease after contact helps explain why later Europeans often encountered societies already transformed by catastrophic loss. The resulting landscapes could be mistaken for timeless nature, making depopulation part of the mythology that denied earlier complexity.

1491: New Revelations of the Americas Before Columbus is a broad work of science journalism, not a single-civilisation history. It is a useful starting point for revising an inherited picture, followed best by work from Indigenous scholars and specialists in each region.

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INTRODUCTION

Holmberg’s Mistake

1 A View from Above

IN THE BENI

The plane took off in weather that was surprisingly cool for central Bolivia and flew east, toward the Brazilian border. In a few minutes the roads and houses disappeared, and the only traces of human settlement were the cattle scattered over the savanna like sprinkles on ice cream. Then they, too, disappeared. By that time the archaeologists had their cameras out and were clicking away in delight.

Below us lay the Beni, a Bolivian province about the size of Illinois and Indiana put together, and nearly as flat. For almost half the year rain and snowmelt from the mountains to the south and west cover the land with an irregular, slowly moving skin of water that eventually ends up in the province’s northern rivers, which are upper tributaries of the Amazon. The rest of the year the water dries up and the bright green vastness turns into something that resembles a desert. This peculiar, remote, often watery plain was what had drawn the researchers’ attention, and not just because it was one of the few places on earth inhabited by some people who might never have seen Westerners with cameras.

Clark Erickson and William Balée, the archaeologists, sat up front. Erickson, based at the University of Pennsylvania, worked in concert with a Bolivian archaeologist, who that day was elsewhere, freeing up a seat in the plane for me. Balée, of Tulane, is actually an anthropologist, but as scientists have come to appreciate the ways in which past and present inform each other, the distinction between anthropologists and archaeologists has blurred. The two men differ in build, temperament, and scholarly proclivity, but they pressed their faces to the windows with identical enthusiasm.

Scattered across the landscape below were countless islands of forest, many of them almost-perfect circles—heaps of green in a sea of yellow grass. Each island rose as much as sixty feet above the floodplain, allowing trees to grow that otherwise could not endure the water. The forests were bridged by raised berms, as straight as a rifle shot and up to three miles long. It is Erickson’s belief that this entire landscape—thirty thousand square miles or more of forest islands and mounds linked by causeways—was constructed by a technologically advanced, populous society more than a thousand years ago. Balée, newer to the Beni, leaned toward this view but was not yet ready to commit himself.

Erickson and Balée belong to a cohort of scholars that in recent years has radically challenged conventional notions of what the Western Hemisphere was like before Columbus. When I went to high school, in the 1970s, I was taught that Indians came to the Americas across the Bering Strait about thirteen thousand years ago, that they lived for the most part in small, isolated groups, and that they had so little impact on their environment that even after millennia of habitation the continents remained mostly wilderness. Schools still impart the same ideas today. One way to summarize the views of people like Erickson and Balée would be to say that they regard this picture of Indian life as wrong in almost every aspect. Indians were here far longer than previously thought, these researchers believe, and in much greater numbers. And they were so successful at imposing their will on the landscape that in 1492 Columbus set foot in a hemisphere thoroughly marked by humankind.

Given the charged relations between white societies and native peoples, inquiry into Indian culture and history is inevitably contentious. But the recent scholarship is especially controversial. To begin with, some researchers—many but not all from an older generation—deride the new theories as fantasies arising from an almost willful misinterpretation of data and a perverse kind of political correctness. “I have seen no evidence that large numbers of people ever lived in the Beni,” Betty J. Meggers, of the Smithsonian Institution, told me. “Claiming otherwise is just wishful thinking.” Indeed, two Smithsonian-backed archaeologists from Argentina have argued that many of the larger mounds are natural floodplain deposits; a “small initial population” could have built the remaining causeways and raised fields in as little as a decade. Similar criticisms apply to many of the new scholarly claims about Indians, according to Dean R. Snow, an anthropologist at Pennsylvania State University. The problem is that “you can make the meager evidence from the ethnohistorical record tell you anything you want,” he says. “It’s really easy to kid yourself.” And some have charged that the claims advance the political agenda of those who seek to discredit European culture, because the high numbers seem to inflate the scale of native loss.

Disputes also arise because the new theories have implications for today’s ecological battles. Much of the environmental movement is animated, consciously or not, by what geographer William Denevan calls “the pristine myth”—the belief that the Americas in 1491 were an almost untouched, even Edenic land, “untrammeled by man,” in the words of the Wilderness Act of 1964, a U.S. law that is one of the founding documents of the global environmental movement. To green activists, as the University of Wisconsin historian William Cronon has written, restoring this long-ago, putatively natural state is a task that society is morally bound to undertake. Yet if the new view is correct and the work of humankind was pervasive, where does that leave efforts to restore nature?

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The Beni is a case in point. In addition to building roads, causeways, canals, dikes, reservoirs, mounds, raised agricultural fields, and possibly ball courts, Erickson has argued, the Indians who lived there before Columbus trapped fish in the seasonally flooded grassland. The trapping was not a matter of a few isolated natives with nets, but a society-wide effort in which hundreds or thousands of people fashioned dense, zigzagging networks of earthen fish weirs (fish-corralling fences) among the causeways. Much of the savanna is natural, the result of seasonal flooding. But the Indians maintained and expanded the grasslands by regularly setting huge areas on fire. Over the centuries the burning created an intricate ecosystem of fire-adapted plant species dependent on indigenous pyrophilia. The Beni’s current inhabitants still burn, although now it is mostly to maintain the savanna for cattle. When we flew over the region, the dry season had just begun, but mile-long lines of flame were already on the march. Smoke rose into the sky in great, juddering pillars. In the charred areas behind the fires were the blackened spikes of trees, many of them of species that activists fight to save in other parts of Amazonia.

North of the Beni is the department of Pando, which is lightly inhabited and largely forested. And north of Pando is the Brazilian state of Acre, which is also lightly inhabited, but which has seen much of its forest removed to create cattle ranches. Only the Brazil-nut trees are left—cutting them is illegal. (They will die out nonetheless; the trees need to be pollinated by particular species of forest bees, which cannot live in the newly created grasslands.) To stop the other tree species from growing back, ranchers’ planes spray clouds of African grass seeds across the newly opened land; the tough, thick-bladed grass grows into a dense, springy carpet that seedlings cannot penetrate. In the late 1990s, when I first visited the Beni, few knew that the wholesale clearing in Acre was exposing large earthworks—geometric figures that Alceu Ranzi, a researcher at the Federal University of Acre, has dubbed “geoglyphs.” Today more than two hundred have been identified; many are as much as 500 feet from one side to the other. Created by digging precise circles, squares, and rectangles into the Amazonian clay, the geoglyphs are as striking to see from the air as the raised fields and causeways Erickson and Balée showed me in the Beni. Even less is known about the Acre geoglyphs, though; the first article in a professional journal about them did not appear until 2007 (Ranzi was a co-author). Five years later, archaeologists remained unsure of the answers to such basic questions as where the geoglyph builders lived—the structures show no sign of habitation. Erickson, who has found similar earthworks in the Beni, believes that before Columbus an 800- or 1000-mile swath of western Amazonia was occupied by a previously unknown mix of cultures that radically reshaped the landscape around them.

The future of this region is uncertain. The Beni is of increasing interest to ranchers and soybean growers, who covet its open land and relatively good soil. Loggers are eyeing Pando. A new highway to the Pacific is bringing ever-greater numbers of businesses to Acre. Meanwhile, conservationists argue for keeping this unpopulous region as close to nature as possible. Local Indian groups regard this latter proposal with suspicion. If the Beni becomes a reserve for the “natural,” they ask, what international organization would let them continue setting the plains afire? Could any outside group endorse large-scale burning in Amazonia? Instead, Indians propose placing control of the land into their hands. Activists, in turn, regard that idea without enthusiasm—some indigenous groups in the U.S. Southwest have promoted the use of their reservations as repositories for nuclear waste. And, of course, there is all that burning.

HOLMBERG’S MISTAKE

“Don’t touch that tree,” Balée said.

I froze. I was climbing a low, crumbly hill and had been about to support myself by grasping a scrawny, almost vine-like tree with splayed leaves. “Triplaris americana,” said Balée, an expert in forest botany. “You have to watch out for it.” In an unusual arrangement, he said, T. americana plays host to colonies of tiny red ants—indeed, it has trouble surviving without them. The ants occupy minute tunnels just beneath the bark. In return for shelter, the ants attack anything that touches the tree—insect, bird, unwary writer. The venom-squirting ferocity of their attack gives rise to T. americana’s local nickname: devil tree.

At the base of the devil tree, exposing its roots, was a deserted animal burrow. Balée scraped out some dirt with a knife, then waved me over, along with Erickson and my son Newell, who were accompanying us. The depression was thick with busted pottery. We could see the rims of plates and what looked like the foot of a teakettle—it was shaped like a human foot, complete with painted toenails. Balée plucked out half a dozen pieces of ceramic: shards of pots and plates, a chipped length of cylindrical bar that may have been part of a pot’s support leg. As much as an eighth of the hill, by volume, was composed of such fragments, he said. You could dig almost anywhere on it and see the like. We were clambering up an immense pile of broken crockery.

The pile is known as Ibibate, at fifty-nine feet one of the tallest known forested mounds in the Beni. Erickson explained to me that the pieces of ceramic were probably intended to help build up and aerate the muddy soil for settlement and agriculture. But though this explanation makes sense on engineering grounds, he said, it doesn’t make the long-ago actions of the moundbuilders any less mysterious. The mounds cover such an enormous area that they seem unlikely to be the byproduct of waste. Monte Testaccio, the hill of broken pots southeast of Rome, was a garbage dump for the entire imperial city. Ibibate is larger than Monte Testaccio and but one of hundreds of similar mounds. Surely the Beni did not generate more waste than Rome—the ceramics in Ibibate, Erickson argues, indicate that large numbers of people, many of them skilled laborers, lived for a long time on these mounds, feasting and drinking exuberantly all the while. The number of potters necessary to make the heaps of crockery, the time required for labor, the number of people needed to provide food and shelter for the potters, the organization of large-scale destruction and burial—all of it is evidence, to Erickson’s way of thinking, that a thousand years ago the Beni was the site of a highly structured society, one that through archaeological investigation was just beginning to come into view.

Accompanying us that day were two Sirionó Indians, Chiro Cuéllar and his son-in-law Rafael. The two men were wiry, dark, and nearly beardless; walking beside them on the trail, I had noticed small nicks in their earlobes. Rafael, cheerful almost to bumptiousness, peppered the afternoon with comments; Chiro, a local figure of authority, smoked locally made “Marlboro” cigarettes and observed our progress with an expression of amused tolerance. They lived about a mile away, in a little village at the end of a long, rutted dirt road. We had driven there earlier in the day, parking in the shade of a tumbledown school and some old missionary buildings. The structures were clustered near the top of a small hill—another ancient mound. While Newell and I waited by the truck, Erickson and Balée went inside the school to obtain permission from Chiro and the other members of the village council to tramp around. Noticing that we were idle, a couple of Sirionó kids tried to persuade Newell and me to look at a young jaguar in a pen, and to give them money for this thrill. After a few minutes, Erickson and Balée emerged with the requisite permission—and two chaperones, Chiro and Rafael. Now, climbing up Ibibate, Chiro observed that I was standing by the devil tree. Keeping his expression deadpan, he suggested that I climb it. Up top, he said, I would find some delicious jungle fruit. “It will be like nothing you have experienced before,” he promised.

From the top of Ibibate we were able to see the surrounding savanna. Perhaps a quarter mile away, across a stretch of yellow, waist-high grass, was a straight line of trees—an ancient raised causeway, Erickson said. Otherwise the countryside was so flat that we could see for miles in every direction—or, rather, we could have seen for miles, if the air in some directions had not been filled with smoke.

Afterward I wondered about the relationship of our escorts to this place. Were the Sirionó like contemporary Italians living among the monuments of the Roman Empire? I asked Erickson and Balée that question during the drive back.

Their answer continued sporadically through the rest of the evening, as we rode to our lodgings in an unseasonable cold rain and then had dinner. In the 1970s, they said, most authorities would have answered my question about the Sirionó in one way. Today most would answer it in another, different way. The difference involves what I came to think of, rather unfairly, as Holmberg’s Mistake.

Although the Sirionó are but one of a score of Native American groups in the Beni, they are the best known. Between 1940 and 1942 a young doctoral student named Allan R. Holmberg lived among them. He published his account of their lives, Nomads of the Longbow, in 1950. (The title refers to the six-foot bows the Sirionó used for hunting.) Quickly recognized as a classic, Nomads remains an iconic and influential text; as filtered through countless other scholarly articles and the popular press, it became one of the main sources for the outside world’s image of South American Indians.

The Sirionó, Holmberg reported, were “among the most culturally backward peoples of the world.” Living in constant want and hunger, he said, they had no clothes, no domestic animals, no musical instruments (not even rattles and drums), no art or design (except necklaces of animal teeth), and almost no religion (the Sirionó “conception of the universe” was “almost completely uncrystallized”). Incredibly, they could not count beyond three or make fire (they carried it, he wrote, “from camp to camp in a [burning] brand”). Their poor lean-tos, made of haphazardly heaped palm fronds, were so ineffective against rain and insects that the typical band member “undergoes many a sleepless night during the year.” Crouched over meager campfires during the wet, buggy nights, the Sirionó were living exemplars of primitive humankind—the “quintessence” of “man in the raw state of nature,” as Holmberg put it. For millennia, he thought, they had existed almost without change in a landscape unmarked by their presence. Then they encountered European society and for the first time their history acquired a narrative flow.

Holmberg was a careful and compassionate researcher whose detailed observations of Sirionó life remain valuable today. And he bravely surmounted trials in Bolivia that would have caused many others to give up. During his months in the field he was always uncomfortable, usually hungry, and often sick. Blinded by an infection in both eyes, he walked for days through the forest to a clinic, holding the hand of a Sirionó guide. He never fully recovered his health. After his return, he became head of the anthropology department at Cornell University, from which position he led its celebrated efforts to alleviate poverty in the Andes.

Nonetheless, he was wrong about the Sirionó. And he was wrong about the Beni, the place they inhabited—wrong in a way that is instructive, even exemplary.

Before Columbus, Holmberg believed, both the people and the land had no real history. Stated so baldly, this notion—that the indigenous peoples of the Americas floated changelessly through the millennia until 1492—may seem ludicrous. But flaws in perspective often appear obvious only after they are pointed out. In this case they took decades to rectify.

The Bolivian government’s instability and fits of anti-American and anti-European rhetoric ensured that few foreign anthropologists and archaeologists followed Holmberg into the Beni. Not only was the government hostile, the region, a center of the cocaine trade in the 1970s and 1980s, was dangerous. Today there is less drug trafficking, but smugglers’ runways can still be seen, cut into remote patches of forest. The wreck of a crashed drug plane sits not far from the airport in Trinidad, the biggest town in the province. During the drug wars “the Beni was neglected, even by Bolivian standards,” according to Robert Langstroth, a geographer and range ecologist in Wisconsin who did his dissertation fieldwork there. “It was a backwater of a backwater.” Gradually a small number of scientists ventured into the region. What they learned transformed their understanding of the place and its people.

Just as Holmberg believed, the Sirionó were among the most culturally impoverished people on earth. But this was not because they were unchanged holdovers from humankind’s ancient past but because smallpox and influenza laid waste to their villages in the 1920s. Before the epidemics at least three thousand Sirionó, and probably many more, lived in eastern Bolivia. By Holmberg’s time fewer than 150 remained—a loss of more than 95 percent in less than a generation. So catastrophic was the decline that the Sirionó passed through a genetic bottleneck. (A genetic bottleneck occurs when a population becomes so small that individuals are forced to mate with relatives, which can produce deleterious hereditary effects.) The effects of the bottleneck were described in 1982, when Allyn Stearman of the University of Central Florida became the first anthropologist to visit the Sirionó since Holmberg. Stearman discovered that the Sirionó were thirty times more likely to be born with clubfeet than typical human populations. And almost all the Sirionó had unusual nicks in their earlobes, the traits I had noticed on the two men accompanying us.

Even as the epidemics hit, Stearman learned, the group was fighting the white cattle ranchers who were taking over the region. The Bolivian military aided the incursion by hunting down the Sirionó and throwing them into what were, in effect, prison camps. Those released from confinement were forced into servitude on the ranches. The wandering people Holmberg traveled with in the forest had been hiding from their abusers. At some risk to himself, Holmberg tried to help them, but he never fully grasped that the people he saw as remnants from the Paleolithic Age were actually the persecuted survivors of a recently shattered culture. It was as if he had come across refugees from a Nazi concentration camp, and concluded that they belonged to a culture that had always been barefoot and starving.

Far from being leftovers from the Stone Age, in fact, the Sirionó are probably relative newcomers to the Beni. They speak a language in the Tupí-Guaraní group, one of the most important Indian language families in South America but one not common in Bolivia. Linguistic evidence, first weighed by anthropologists in the 1970s, suggests that they arrived from the north as late as the seventeenth century, about the time of the first Spanish settlers and missionaries. Other evidence suggests they may have come a few centuries earlier; Tupí-Guaraní–speaking groups, possibly including the Sirionó, attacked the Inka empire in the early sixteenth century. No one knows why the Sirionó moved in, but one reason may be simply that the Beni then was little populated. Not long before, the previous inhabitants’ society had disintegrated.

To judge by Nomads of the Longbow, Holmberg did not know of this earlier culture—the culture that built the causeways and mounds and fish weirs. He didn’t see that the Sirionó were walking through a landscape that had been shaped by somebody else. A few European observers before Holmberg had remarked upon the earthworks’ existence, though some doubted that the causeways and forest islands were of human origin. But they did not draw systematic scholarly attention until 1961, when William Denevan came to Bolivia. Then a doctoral student, he had learned of the region’s peculiar landscape during an earlier stint as a cub reporter in Peru and thought it might make an interesting topic for his thesis. Upon arrival he discovered that oil-company geologists, the only scientists in the area, believed the Beni was thick with the remains of an unknown civilization.

(Illustration Credit 1.1)

(Illustration Credit 1.2)

(Illustration Credit 1.3)

Flying over eastern Bolivia in the early 1960s, the young geographer William Denevan was amazed to see that the landscape (Illustration 1.3) was covered by the raised agricultural fields of a now-vanished society. Scattered among the raised fields were irregular, moat-like ditches (Illustration 1.2) whose purpose is still unknown. In the adjacent Brazilian state of Acre, archaeologists have found several hundred precise, geometric “geoglyphs” (Illustration 1.1) and are beginning to suspect that much of western Amazonia housed large-scale, complex Indian societies.

Convincing a local pilot to push his usual route westward, Denevan examined the Beni from above. He observed exactly what I saw four decades later: isolated hillocks of forest; long raised berms; canals; raised agricultural fields; circular, moat-like ditches; and odd, zigzagging ridges. “I’m looking out of one of these DC-3 windows, and I’m going berserk in this little airplane,” Denevan said to me. “I knew these things were not natural. You just don’t have that kind of straight line in nature.” As Denevan learned more about the landscape, his amazement grew. “It’s a completely humanized landscape,” he said. “To me, it was clearly the most exciting thing going on in the Amazon and adjacent areas. It may be the most important thing in all of South America, I think. Yet it was practically untouched” by scientists. It is still almost untouched—archaeologists have not finished mapping the earthworks and canals.

Beginning as much as three thousand years ago, this long-ago society—Erickson believes it was probably founded by the ancestors of an Arawak-speaking people now called the Mojo and the Bauré—created one of the largest, strangest, and most ecologically rich artificial environments on the planet. These people built up the mounds for homes and farms, constructed the causeways and canals for transportation and communication, created the fish weirs to feed themselves, and burned the savannas to keep them clear of invading trees. A thousand years ago their society was at its height. Their villages and towns were spacious, formal, and guarded by moats and palisades. In Erickson’s hypothetical reconstruction, as many as a million people may have walked the causeways of eastern Bolivia in their long cotton tunics, heavy ornaments dangling from their wrists and necks.

Today, hundreds of years after this Arawak culture passed from the scene, the forest on and around Ibibate mound looks like the classic Amazon of conservationists’ dreams: lianas thick as a human arm, dangling blade-like leaves more than six feet long, smooth-boled Brazil nut trees, thick-bodied flowers that smell like warm meat. In terms of species richness, Balée told me, the forest islands of Bolivia are comparable to any place in South America. The same is true of the Beni savanna, it seems, with its different complement of species. Ecologically, the region is a treasure, but one designed and executed by human beings. Erickson regards the landscape of the Beni as one of humankind’s greatest works of art, a masterpiece that until recently was almost completely unknown, a masterpiece in a place with a name that few people outside Bolivia would recognize.

“EMPTY OF MANKIND AND ITS WORKS”

The Beni was no anomaly. For almost five centuries, Holmberg’s Mistake—the supposition that Native Americans lived in an eternal, unhistoried state—held sway in scholarly work, and from there fanned out to high school textbooks, Hollywood movies, newspaper articles, environmental campaigns, romantic adventure books, and silk-screened T-shirts. It existed in many forms and was embraced both by those who hated Indians and those who admired them. Holmberg’s Mistake explained the colonists’ view of most Indians as incurably vicious barbarians; its mirror image was the dreamy stereotype of the Indian as a Noble Savage. Positive or negative, in both images Indians lacked what social scientists call agency—they were not actors in their own right, but passive recipients of whatever windfalls or disasters happenstance put in their way.

The Noble Savage dates back as far as the first full-blown ethnography of American indigenous peoples, Bartolomé de Las Casas’s Apologética Historia Sumaria, written mainly in the 1530s. Las Casas, a conquistador who repented of his actions and became a priest, spent the second half of his long life opposing European cruelty in the Americas. To his way of thinking, Indians were natural creatures who dwelt, gentle as cows, in the “terrestrial paradise.” In their prelapsarian innocence, he believed, they had been quietly waiting—waiting for millennia—for Christian instruction. Las Casas’s contemporary, the Italian commentator Pietro Martire d’Anghiera, shared these views. Indians, he wrote (I quote the English translation from 1556), “lyve in that goulden world of whiche owlde writers speake so much,” existing “simplye and innocentlye without inforcement of lawes.”

In our day, beliefs about Indians’ inherent simplicity and innocence refer mainly to their putative lack of impact on the environment. This notion dates back at least to Henry David Thoreau, who spent much time seeking “Indian wisdom,” an indigenous way of thought that supposedly did not encompass measuring or categorizing, which he viewed as the evils that allowed human beings to change Nature. Thoreau’s ideas continue to be influential. In the wake of the first Earth Day in 1970, a group named Keep America Beautiful, Inc., put up billboards that portrayed an actor in Indian dress quietly weeping over polluted land. The campaign was enormously successful. For almost a decade the image of the crying Indian appeared around the world. Yet though Indians here were playing a heroic role, the advertisement still embodied Holmberg’s Mistake, for it implicitly depicted Indians as people who never changed their environment from its original wild state. Because history is change, they were people without history.

Las Casas’s anti-Spanish views met with such harsh attacks that he instructed his executors to publish the Apologética Historia forty years after his death (he died in 1566). In fact, the book did not appear in complete form until 1909. As the delay suggests, polemics for the Noble Savage tended to meet with little sympathy in the eighteenth and nineteenth centuries. Emblematic was the U.S. historian George Bancroft, dean of his profession, who argued in 1834 that before Europeans arrived North America was “an unproductive waste … Its only inhabitants were a few scattered tribes of feeble barbarians, destitute of commerce and of political connection.” Like Las Casas, Bancroft believed that Indians had existed in societies without change—except that Bancroft regarded this timelessness as an indication of sloth, not innocence.

In different forms Bancroft’s characterization was carried into the next century. Writing in 1934, Alfred L. Kroeber, one of the founders of American anthropology, theorized that the Indians in eastern North America could not develop—could have no history—because their lives consisted of “warfare that was insane, unending, continuously attritional.” Escaping the cycle of conflict was “well-nigh impossible,” he believed. “The group that tried to shift its values from war to peace was almost certainly doomed to early extinction.”* Kroeber conceded that Indians took time out from fighting to grow crops, but insisted that agriculture “was not basic to life in the East; it was an auxiliary, in a sense a luxury.” As a result, “Ninety-nine per cent or more of what [land] might have been developed remained virgin.”

Four decades later, Samuel Eliot Morison, twice a Pulitzer Prize winner, closed his two-volume European Discovery of America with the succinct claim that Indians had created no lasting monuments or institutions. Imprisoned in changeless wilderness, they were “pagans expecting short and brutish lives, void of any hope for the future.” Native people’s “chief function in history,” the British historian Hugh Trevor-Roper, Baron Dacre of Glanton, proclaimed in 1965, “is to show to the present an image of the past from which by history it has escaped.”

Textbooks reflected academic beliefs faithfully. In a survey of U.S. history schoolbooks, the writer Frances Fitzgerald concluded that the characterization of Indians had moved, “if anything, resolutely backward” between the 1840s and the 1940s. Earlier writers thought of Indians as important, though uncivilized, but later books froze them into a formula: “lazy, childlike, and cruel.” A main textbook of the 1940s devoted only a “few paragraphs” to Indians, she wrote, “of which the last is headed ‘The Indians Were Backward.’ ”