A groundbreaking study by researchers at the University of Copenhagen found that all humans with blue eyes can trace their ancestry back to a single individual who lived between 6,000 and 10,000 years ago. This genetic mutation occurred in the OCA2 gene, which controls melanin production in the iris.
The discovery was led by Dr. Hans Eiberg, who found that this specific genetic switch doesn’t remove eye color entirely but “dilutes” brown eyes to blue. This same mutation has been found in every person with blue eyes studied to date—suggesting they all inherited it from a common ancestor.
Source: Facebook - Ancient history
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