Diverse American Indian Societies
People first migrated to the Americas from northeast Asia around 25,000 years ago, developing various agricultural systems between 8000-2000 BC. These early Americans practiced horticulture, working small plots with simple tools to grow crops like corn, beans, squash, and potatoes.
Advanced civilizations arose throughout the Americas. The Aztecs were warrior-rulers who built Tenochtitlan in present-day Mexico, developing writing systems and creating innovative "chinampas" (artificial islands) to increase crop production. The Maya civilization (900 BC-300 CE) established large cities, developed mathematics, astronomy, and hieroglyphics before declining around 800 CE. The Incas controlled an enormous empire of 16 million people across 350,000 square miles in the Andes Mountains.
In North America, smaller but successful civilizations emerged. The Hohokam and Pueblo peoples built urban centers from adobe bricks in the Southwest, with some constructing cliff dwellings for protection. Other groups developed along the Mississippi River, in the Great Basin, and along the Pacific Coast, where they abandoned nomadic lifestyles to utilize the abundant fish and game resources.
Did you know? The spread of maize cultivation around 1500 CE throughout the American Southwest sparked major economic development and greater diversification of Native societies.
