Did the ancestors of the Japanese come from China?

It can only be said that some Japanese ancestors were from ancient China. Not all Japanese are descendants of ancient China.

In 1980s, Japan used DNA technology and other archaeological and anthropological means to study it. The composition of modern Japanese is divided into three parts:

Aboriginal people, this part does not refer to the Ainu people in modern Japan. But in ancient times, they crossed the sea from Altai Mountain in Mongolia and Tunguska Valley in Siberia and landed in the northern part of Honshu Island in Japan. The blood type of this part of Japanese is mainly AB, and the negative AB is as high as 40%. According to DNA sequencing, it is 89% similar to Manchu, Oroqen, Ewenki, Hezhe and Daur in China. Judging from the time of arrival in Japan, this part was the earliest, which can be pushed back to 20 thousand years ago at the earliest.

The similarity between southern marine immigrants and Malays and Javanese in island areas such as Southeast Asia is only 32%, but unexpectedly it is as high as 92% with Polynesians in Oceania. The main concentrated areas are Shikoku Island in Japan and the Pacific coast in the southeast of Honshu Island. It can be considered that it came from the central Pacific Ocean 6.5438+0 million years ago.

Mainland and peninsula immigrants, this part is divided into two parts, one part is 90% consistent with today's Korean peninsula nationalities, and it can be considered that ancient Korean peninsula residents migrated across the sea to Kyushu Island and western Honshu Island in Japan. The earliest time can be seven thousand years ago. The other part is consistent with 87% of the residents in the southeast coast of Chinese mainland. The earliest arrival time was about 2,500 years ago, from the Warring States Period to the early Qin and Han Dynasties.

The above three parts are divided into three parts: aborigines and mainland immigrants each account for about 40%, and marine immigrants account for about 20%. In terms of time, indigenous people are the earliest, followed by marine immigrants, and immigrants from the Korean Peninsula and the southern coast of Chinese mainland arrive at the latest.