25,00 to 11,000 years ago
Ocean levels expose land bridge between Asia and North America
13,900 to 12,900 years ago
Clovis hunters cross into North America
10,000 to 3000 years ago
Archaic period sees variety of Indian societies
4000 to 2700 BCE
Poverty Point culture existing in Louisiana
300 to 900 BCE
Mayan culture flourishes in Mesoamerica
600 to 1100
Cahokia sees rise of mound-building cultures
1200s
Pueblo societies develop in Southwest
1300s
Rise of Aztec societies in Mexico
1492
Columbus reaches Americas
