However, older sites dating back to 20,000 years ago have been claimed, and some genetic studies estimate the colonization of the Americas dates from between 40,000 to 13,000 years ago.
Older sites dating back to 20,000 years ago have been claimed. This was however. The colonization of the Americas dates from between 40,000 to 13,000 years ago. This is what some genetic studies estimate.