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America's pristine myth

By Charles C. Mann / September 1, 2005



AMHERST, MASS.

Next week my daughter will go back to elementary school, and I will be faced with a choice. At some point the curriculum will cover the environment, and she'll be taught that before Europeans settled the Americas the Indians lived so lightly on the land that for all practical purposes the hemisphere was a wilderness. The forests and plains, the teacher will explain, were crowded with bison, beaver, and deer; the rivers, with fish; flights of passenger pigeons darkened the skies. The continent's few inhabitants walked beneath an endless forest of tall trees that had never been disturbed.

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But in recent decades most archaeologists, anthropologists, and geographers have come to believe that this Edenic image isn't true. When Columbus landed, the new research suggests, the Western Hemisphere wasn't filled with scattered bands of ecologically pure hunters and gatherers. Instead, it was a thriving, diverse place; a tumult of languages, trade, and culture; the home to tens of millions of people - more, some researchers believe, than Europe at that time.

Then, the majority of native Americans lived south of the Rio Grande. They were not wanderers with tepees; they built up and lived in some of the world's biggest, most opulent cities. Tenochtitl√°n, the greatest city in the aggressive military alliance best-known as the Aztec empire, may have had a quarter-million inhabitants - more than London or Paris. It glittered on scores of artificially constructed islands in the middle of a great lake in central Mexico. On first encountering this metropolis, the conquistadors gawped like yokels at the great temples and immense banners and colorful promenades. Hundreds of boats flitted like butterflies around the city's canals and the three grand causeways that linked it to the mainland. Long aqueducts conveyed water from the distant mountains to the city. Perhaps most astounding to the Spaniards, according to their memoirs, were the botanical gardens - at the time, none existed in Europe.

Far from being dependent on big-game hunting, most Indians lived on farms. (Otherwise, the cities wouldn't have survived.)

According to a painstaking 2000 inventory of the evidence by geographer William E. Doolittle of the University of Texas at Austin, agriculture occurred in as much as two-thirds of what is now the continental US, with large swaths of the Southwest terraced and irrigated. Among the Midwest and Southeast maize fields, thousands of earthen mounds - priestly ceremonial centers - stippled the land. When the Pilgrims landed, they discovered that Indians had peeled back the great forests of the eastern seaboard, lining the coast with farms that stretched inland for miles. (There was little farming in the Northwest, but salmon nets stretched across almost every ocean-bound stream in the region.)

Further south, Indians had converted the Mexican basin and Yucat√°n into artificial environments suitable for farming. Terraces and canals and stony highways lined the Western face of the Andes. Raised fields and causeways covered Bolivian Amazonia. Farms dotted Argentina and central Chile. At the time of conquest, Indians had converted perhaps a quarter of the Amazon forest into farms and agricultural forests - an area the size of France and Spain combined.

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