First Nations in North America: A Timeline of 15,000+ Years

When Did First Nations Peoples Live in North America?

Archaeological and genetic evidence confirms that Indigenous peoples have inhabited North America for at least 15,000 years, dating to the last glacial period.

Key Phases

• Paleo-Indian Period (~15,000–8,000 BCE): Nomadic hunter-gatherers crossed Beringia (Siberia–Alaska land bridge), following megafauna (mammoth, mastodon).
• Archaic Period (~8,000–1,000 BCE): Climate warming; diversification into regional cultures; development of specialized tools, trade networks, and early agriculture.
• Woodland/Mississippian/Plains/etc. (~1,000 BCE–1500 CE): Rise of complex societies (e.g., Cahokia), pottery, mound-building, maize agriculture, and distinct cultural traditions.
• Post-Contact (1492 onward): European arrival brought disease, displacement, warfare, and cultural suppression—but also resilience, adaptation, and cultural continuity.

Regional Diversity

• Arctic: Inuit – marine mammal hunting, igloo construction.
• Great Plains: Lakota, Blackfoot – bison-centered nomadism.
• Northeast/Woodlands: Haudenosaunee, Algonquian – mixed farming, longhouses.
• Southwest: Pueblo peoples – irrigation agriculture, cliff dwellings.
• Pacific Northwest: Salish, Tlingit – salmon fishing, potlatch, cedar architecture.

Contemporary Presence

Today, over 5 million Indigenous people live in the US and Canada, maintaining languages, governance, and cultural practices while shaping modern society.