The histories of these peoples are told in the things they left behind: gigantic mounds made of earth, apartment houses perched in caves high above valleys, elaborate stone pyramids, networked roads that linked towns, an isolated hearth out on the high plains, a small sandal left behind in a desolate cave decorated with elaborate rock art, a projectile point embedded in the rib of a mammoth, the skids of an ancient sled. These objects, constructions, and artwork tell us about the countless societies that flourished, diminished, or continued into the present day across the American continents.
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