"There's nothing that would have prevented...people from crossing the Atlantic into the Americas 19,000 years ago. It would be a perfectly normal situation from my perspective." Ronald Brower Inupiat Heritage Center Source: America’s First Immigrants Evan Hadingham Smithsonian November 2004, vol. 35, Issue 8 20. The Journey - Experts Say Possible/Routine from Trevor T. on Vimeo.