Massive yet elegantly executed masonry architecture andenes (agricultural terraces) set against majestic and seemingly boundless Andean landscapes, roads built in defiance of rugged terrains, and fine textiles with orderly geometric designs—all were created within the largest political system in the ancient New World, a system headed, paradoxically, by a single, small minority group without wheeled vehicles, markets, or a writing system, the Inka. For some 130 years (ca. A.D. 1400 to 1533), the Inka ruled over at least eighty-six ethnic groups in an empire that encompassed about 2 million square kilometers, from the northernmost region of the Ecuador–Colombia border to northwest Argentina.