Quotes from Charles C. Mann

Dobyns calculated that in the first 130 years of contact about 95 percent of the people in the Americas died. To estimate native numbers before Columbus, one thus had to multiply census figures from those times by a factor of twenty or more.

About 3.5 percent of the weight of seawater consists of dissolved salts, most of it table salt. The most common way of removing the salt is known as "reverse osmosis.

Cultures are like books, the anthropologist Claude Lévi-Strauss once remarked, each a volume in the great library of humankind. In the sixteenth century, more books were burned than ever before or since. How many Homers vanished? How many Hesiods? What great works of painting, sculpture, architecture, and music vanished or never were created? Languages, prayers, dreams, habits, and hopes—all gone. And not just once, but over and over again.

Sahagún is known as the first American anthropologist, for he labored for decades to understand the Indians he sought to convert. With other missionaries, he amassed an archive on the Mexica and their neighbors—dynastic histories, dictionaries of native languages, descriptions of customs, collections of poetry and drama, galleries of paintings and sculpture—unequaled by that on any other Indian group, even the Inka.

Farmers have injected so much synthetic fertilizer into their fields that soil and groundwater nitrogen levels have risen worldwide. Today, almost half of all the crops consumed by humankind depend on nitrogen derived from synthetic fertilizer. Another way of putting this is to say that Haber and Bosch enabled our species to extract an additional 3 billion people's worth of food from the same land.

Few researchers today accept Dobyns's estimates—they seem extreme—but most believe that native numbers were far higher than estimated by previous generations. Most, but not all.

More than a century later, when Dobyns went to Lima, Prescott's was still the only complete account. (A fine history, John Hemming's Conquest of the Incas, appeared in 1970. But it, too, has had no successor, despite a wealth of new information.) "The Inka were largely ignored because the entire continent of South America was largely ignored," Patricia Lyon, an anthropologist at the Institute for Andean Studies, in Berkeley, California, explained to me.

Rocketing up the growth curve, humankind every year takes ever more of the earth's richness. An often quoted estimate by a team of Stanford biologists is that humans grab "about 40% of the present net primary production in terrestrial ecosystems"—40 percent of the entire world's output of land plants and animals.

What seems unlikely to be undone is the awareness that Native Americans may have been in the Americas for twenty thousand or even thirty thousand years. Given that the Ice Age made Europe north of the Loire Valley uninhabitable until some eighteen thousand years ago, the Western Hemisphere should perhaps no longer be described as the "New World.

in the Middle East, for example, the wild barley harvest from a small piece of land can feed a family. By contrast, no wild maize ancestor has ever been found, despite decades of search.

of venereal soldiers along the way. A more effective

the Triple Alliance (as the Aztec empire is more precisely known), bigger by far than any European state, the Inka dominion extended over a staggering thirty-two degrees of latitude—as if a single power held sway from St. Petersburg to Cairo. The empire encompassed every imaginable type of terrain, from the rainforest of upper Amazonia to the deserts of the Peruvian coast and the twenty-thousand-foot peaks of the Andes between.

Ultraconservative Russian Orthodox priests denounced it as an incarnation of evil, using as proof the undeniable fact that potatoes are not mentioned in the Bible.

In this way the sacred mission of the Triple Alliance became translated into a secular mission: to obtain prisoners to sacrifice for the sun, the Alliance had to take over the world.

The successors to both Wari and Tiwanaku combined the former's organizational skills and the latter's sense of design and razzle-dazzle. First came Chimor, then the greatest empire ever seen in Peru. Spread at its greatest extent over seven hundred miles of the coastline, Chimor was an ambitious state that grew maize and cotton by irrigating almost fifty thousand acres around the Moche River (all of modern Peru only reached that figure in 1960). A

The Inka goal was to knit the scores of different groups in western South America—some as rich as the Inka themselves, some poor and disorganized, all speaking different languages—into a single bureaucratic framework under the direct rule of the emperor.

Inexperienced in agriculture, the Pilgrims were also not woodspeople; indeed, they were so incurious about their environment that Bradford felt obliged to comment in his journal when Francis Billington . . . climbed to the top of a tall tree to look around. As Thoreau noted with disgust, the colonists landed at Plymouth on December 16, but it was not until January 8 that one of them went as far away as two miles--and even then the traveler was, again, Francis Billington.

De Soto died of fever with his expedition in ruins. Along the way, though, he managed to rape, torture, enslave, and kill countless Indians. But the worst thing he did, some researchers say, was entirely without malice—he brought pigs.

Maize is one of the few farm species that is more diverse than most wild plants.

This last sentence is imprecise.

By the eve of the American Revolution, a third of the native people in Rhode Island were enslaved. Indian bondage was more common still in the southern

Almost seventy years ago the Cuban folklorist Fernando Ortiz Fernández coined the awkward but useful term "transculturation" to describe what happens when one group of people takes something—a song, a food, an ideal—from another. Almost inevitably, Ortiz noted, the new thing is transformed; people make it their own by adapting, stripping, and twisting it to fit their needs and situation.

As with the Inka, the kings' mummified bodies continued to live opulently in their own homes and could not be displaced; indeed, the mummies were necessary presences at important state occasions. As a result, each new ruler had to build his own palace and acquire the riches necessary to maintain it till the end of time. The system almost guaranteed imperial ambitions and exuberant construction plans.

Taken together, the cordilleras and the altiplano make up the Andes, the second-biggest chain of mountains in the world.