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Published 17:48 17 Dec 2016 GMT
Researchers at the University of Copenhagen have collected research which found that there was a genetic mutation up to 10,000 years ago.
Reportedly, before this mutation, everyone had brown eyes but in one person eye's, they changed from brown to blue which thus was the beginning of blue-eyed people everywhere.
All blue-eyed people are reportedly related to this one ancestor whose eyes changed colour and passed the trait on to descendants to come.Explore more on these topics:
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