Ancient Northern North America By riley.stone Period: 40,000 BCE to 14,000 BCE Early Migration to North America Period: 40,000 BCE to 12,000 BCE Paleoindian Culture Period: 8500 BCE to 7900 BCE Dalton Culture 8000 BCE Ice Age Ends Period: 8000 BCE to 1000 BCE Archaic Period 3500 BCE Hunter-Gatherer Cultures Settles in North America in Different Regional Environments