The interchange of the southern Korean peninsula in Three Han age to Japan in Yayoi period was limited to the nothern Kyushu. But, when it became Three Kingdom age, rout of the earlier onesided interchange with the nothern Kyushu, it was enlarged to t...
The interchange of the southern Korean peninsula in Three Han age to Japan in Yayoi period was limited to the nothern Kyushu. But, when it became Three Kingdom age, rout of the earlier onesided interchange with the nothern Kyushu, it was enlarged to the all parts of Japan. Being proven by Those facts which the pottery of japanese type(土師器) was recently found in korea, such as Kimhae, Pusan.
These Hajiki(土師器) of being found in Young-nam province were constituted by wide area of Japan, such as nothern Kyushu, Sanin(山陰) province, Hokurikyu(北陰) province, but the pottery of Kinki(近畿) were not found.
By the way, the author finds the characteristic features of the Hajiki(土師器). While the Hajiki of Japan only exists from the later 3rd century A.D. to the earlier half of 4th century A.D., all Hajiki became korean cultured Hajiki from the early 4th century A.D..
It lad important two points that japanese pottery of each region in Japan from the later 3rd century A.D. to the early 4th century A.D. was excavated. The one was that the position of nothern Kyushu had exclusively received the iron of Kaya until Three Han Age. The other was the fact that the japanese came from japan lived in Young-nam province of korea. This fact proves that the pottery made in japan was found in Korea.
When various situation of archaeological data were seen, the author believed that these japanese provided work power far importing from iron of Kaya. And these Japanese didn't come back to Japan. The author consider that they settled in Young-nam province and these japanese were constituted of a part of Kaya residents.