A picture of an Ainu taken in the 19th century.
Modern Ainu seem like a cross between oriental and caucasian. Archeological evidence indicates that they were a fishing/hunting culture. It would not be too outlandish to think that a fishing culture would expand along the coastline of the Middle East, past south Asia, eventually hitting the Japanese Islands, and continuing on up the coast of asia and across to the west coast of North America
"A picture of an Ainu taken in the 19th century"
You wouldn't happen to know where there is a larger version of that picture, and maybe some others, would you?