The United States of America (USA) and the nation-states of North America, Central America, and South America are all countries whose populations trace their origins back to migrants, or if one prefers, immigrants viz. emigrants. That is a paradoxical issue of fact in our own present migrant-issue-dominated era.
Here is how it all began....
Smithsonian Magazine has an article by Brian Handwerk titled "Ancient DNA Reveals Complex Story of Human Migration Between Siberia and North America: Two studies greatly increase the amount of information we have about the peoples who first populated North America—from the Arctic to the Southwest U.S."
Attached to the link by the Smithsonian:
Read more: https://www.smithsonianmag.com/science-nature/ancient-dna-reveals-complex-story-human-migration-between-siberia-and-north-america-180972356/#mdMUGpRtvgehwOZ1.99
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