Mitochondrial Eve is the matrilineal common ancestor. Mitochondrial Eve Lived in Aﬁca 152,00 - 234,000 years ago. She was the woman from whom all living humans today descend on their mother's side.
We are kowing the story of the journey ; how our ancestors migrated from Africa to populate the Earth.
Now we know about Japanese story and Japanese ansestors in human genetics.