According to research from the University of Copenhagen, all blue-eyed people will likely be descended from a single ancestor. While early humans all had brown eyes, the study found that the first person with blue eyes was born in Europe 6,000 to 10,000 years ago due to a genetic mutation. The mutation occurs on the OCA2 gene, resulting in a genetic ‘switch’ that limits melanin production in the eye. As we’ve seen, less melanin changes the way light is reflected, making the eyes look blue. The research found that all blue-eyed people have the same mutation at the same ‘spot’ in their chromosomes, indicating that they inherited their blue eyes from the same person.
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