Early Civilizations in the Americas: Almanac presents the story of the development of early American civilizations from the earliest known societies to the Spanish conquest---the dates, locations, sites, history, arts and sciences, religions, economies, governments, and eventual declines of the great ancient American civilizations. Volume 1 features an overview of ancient civilization in general and a brief summary of modern theories about the earliest immigrants and early life in the Americas. The remainder of the volume focuses on the rise of the Andean civilization from the early urban centers to the Inca empire. Volume 2 focuses on the rise of the Mesoamerican civilizations from the Olmecs through the Aztecs.