Mesoamerica is one of six major areas of the world where humans independently changed their culture from a nomadic hunter-gatherer lifestyle into settled communities, cities, and civilization. In addition to China (twice), the Indus Valley, the Fertile Crescent of southwest Asia, Egypt, and Peru, Mesoamerica was home to exciting and irreversible changes in human culture called the "Neolithic Revolution." The changes included domestication of plants and animals, leading to agriculture, husbandry, and eventually sedentary village life. These developments set the stage for the growth of cities,...