Between the visits of De Soto and La Salle, according to Timothy K. Perttula, an archaeological consultant in Austin, Texas, the Caddoan population fell from about 200,000 to about 8,500—a drop of nearly 96 percent. In the eighteenth century, the tally shrank further, to 1,400. An equivalent loss today would reduce the population of New York City to 56,000, not enough to fill Yankee Stadium. “That’s one reason whites think of Indians as nomadic hunters,” Russell Thornton, an anthropologist at the University of California at Los Angeles, said to me. “Everything else—all the heavily populated
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