Blue eyes are actually the second-most common eye color in the world, Wong said in a video post on Instagram back in December last year. Wong explained that everyone with blue eyes is linked to "a ...

All blue-eyed people share a specific genetic trait that leads scientists to believe that all blue-eyed people share an ancestor from 6,000 to 10,000 years ago.

In 2008, a study led by Hans Eiberg from the University of Copenhagen claimed that all blue eyes link back to a single ancestor who lived between 6,000 and 10,000 years ago.