Ainu Deluge Myth

The Ainu are mixed descendants of a Caucasian population that inhabited
Japan before Asian immigrations from Korea. They may have belonged to the
same white population that inhabited the kingdom of Mu and dispersed across
the Pacific Ocean after it was overwhelmed by a great flood. Remnants of this lost
race also appear among 9,000-year-old skeletal remains found in Washington State
(the so-called “Kennewick Man”), the untypically bearded Haida of coastal British
Columbia, and in parts of Polynesia.
The Ainu recall a time when the sea suddenly rose over the land, drowning
most humans. Only a few survived by climbing to mountaintops.
(See Mu)