SciShow
When Did Humans ACTUALLY Get to the Americas?
There are a lot of great debates in science, and a major one is when exactly humans reached the Americas. There's contentious footprints and wishy-washy stone tools, all of which has spurred some heated academic arguments. But the most...
Khan Academy
Khan Academy: Native American Societies Before Contact
What was life like in North America before Europeans arrived? In this video, Kim explores how different environmental factors in North America shaped a variety of Native American societies. [5:24]