Quote Originally Posted by Dharma
Here I listed two useful websites, you may want to have a look:
http://www.omniglot.com/writing/japanese.htm
http://users.tmok.com/~tumble/jpp/japor.html
Actually I noticed that the Japanese traditions and costumes have a lot of similarities with Chinese Han Dynasty (e.g. tatami, low table) and Tang Dynasty Period.
Han chinese is originated from south east and south west asia.



The following figures came from National Science Museum at Ueno/Shinjuku, and supposed to reflect how the mainstream scientist (inland/overseas) sees the origin of japanese people.



Mainstream hypothesis of migrations into the Japanese islands from Sibelia and Korea. Red=Jomon/Ainu (native islanders), Yellow=Yayoi (korean/chinese)



It is known that japanese shares about 60% of genes from continents, and 40% from Ainu/Jomon, proto-caucasoid.