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“Unknowns” Podcast Episode 7, Clip 1

“Unknowns” Podcast Episode 7, Clip 1

One of the biggest mysteries we have about early human migration centers on our species’ arrival in the Americas. Listen in as archaeologist Peter Bellwood and historian David Christian discuss some possible answers to questions surrounding this time.

Key Ideas

As this video progresses, key ideas will be introduced to invoke discussion.

Key Ideas

Think about the following questions as you watch the video


  1. 00:25 How do we know that early humans migrated from northeastern Asia into the Americas?
  2. 00:55 What prevented early humans from accessing the Americas?
  3. 01:54 Why did the population of early humans in the Americas grow rapidly?
  4. 02:26 When does Peter Bellwood think that early humans arrived in the Americas and what evidence is he using to determine this date?