
Cooper’s Ferry, Idaho Photo: Loren Davis, Oregon State University
More evidence that the first travelers to the Americas may have been sailors.
The classic theory of the arrival of early people in North America was the Clovis model. The theory was that early humans migrated to North America by walking over an Alaskan landbridge from Asia around 13,000 years ago. Roughly 14,000 years ago, the landbridge became passible due to the retreat of ice due to rising temperatures.
Now, a team of archeologists working in Cooper’s Ferry, Idaho have uncovered artifacts dating back to 16,000 years ago, well before the landbridge was clear of ice. Whomever these early humans were, they did not walk from Asia. They most likely arrived by boat. Evidence suggests that glaciers retreated from the Pacific coast around 17,000 years ago which would have allowed early Asian sailors to make their way up the Columba River valley to Cooper’s Ferry.