P gene mutation
Blue-eyed humans have a single, common ancestor
Date: January 31, 2008
Source: University of Copenhagen
Summary: New research shows that people with blue eyes have a single, common ancestor. Scientists have tracked down a genetic mutation which took place 6,000-10,000 years ago and is the cause of the eye color of all blue-eyed humans alive on the planet today.
https://www.sciencedaily.com/releases/2008/01/080130170343.htm
https://ghr.nlm.nih.gov/gene/OCA2