The pre-Columbian era covers the history of Indigenous American societies from the earliest human settlement through the onset of European colonization. People entered the Americas in multiple stages, with genetic evidence pointing to an initial population associated with Beringia and later movements into northern regions. The exact timing remains disputed: proposed models range from roughly 14,000 years ago to 30,000–40,000 years ago or earlier.
Early Paleo-Indians generally lived in mobile bands, hunting, gathering, and using stone tools. As climates stabilized, communities developed distinct lifeways. Some adopted agriculture and permanent settlement, while others continued mobile economies suited to Arctic, desert, coastal, forest, or grassland environments. In the Lower Mississippi Valley, hunter-gatherers built monumental mound complexes thousands of years before the rise of agricultural chiefdoms. Later cultures such as the Woodland and Mississippian peoples expanded earthwork traditions, trade, farming, and urban organization. Cahokia may have held more than 20,000 people.
Mesoamerica became a center of urban civilization. The Olmec established influential political, religious, artistic, and architectural traditions. Teotihuacan became a cosmopolitan metropolis, while Maya city-states advanced writing, mathematics, astronomy, and calendrics. Later powers included the Toltecs, Zapotecs, Mixtecs, Tarascans, Tlaxcalans, and the Mexica-led Triple Alliance, whose capital Tenochtitlan ranked among the world’s largest cities.
South America produced the early urban civilization of Norte Chico, the Valdivia culture, Moche, Wari, Tiwanaku, and the Inca Empire. The Inca connected millions of people through roads, terraced agriculture, and precise stone construction.
Indigenous agriculture transformed the world. Maize, potatoes, cassava, beans, squash, tomatoes, chili peppers, cocoa, quinoa, and many other crops originated in the Americas. European arrival brought conquest and Old World diseases, causing catastrophic demographic and cultural disruption, while archaeology, oral histories, genetics, and surviving records continue to reconstruct Indigenous achievements.