What is the relationship between Koreans and Koreans in China?

There is no one on the Korean peninsula.

When the Shang Dynasty perished, Ji Zi, a nobleman of the Shang Dynasty (a relative of Zhou Wang of the Shang Dynasty), led 5,000 people to flee to the Korean Peninsula and established the first country on the Korean Peninsula: Jizi Korea.

Since then, China people have been emigrating to the Korean peninsula.

During the Han Dynasty, the Korean peninsula was occupied by the Han Dynasty, which established four counties there.

During the Eastern Jin Dynasty, China lost its territory in the north, so it could not control the Korean Peninsula. There are many tribes on the Korean peninsula. These tribes annexed each other, and three countries, Silla, Baekje and Koguryo, were formed before the Sui Dynasty.

The Tang Dynasty and Silla Alliance eliminated Baekje and Koguryo. Baekje was destroyed by the Tang Dynasty, and later its territory belonged to Silla. Goguryeo was jointly destroyed by the Tang Dynasty and Silla, and its territory was divided by both sides, with Datong River (due south of Pyongyang) as the boundary, to the Tang Dynasty in the north and Silla in the south.

Later, Silla declined, the Korean Peninsula split again, and the rising Korea unified the Korean Peninsula. Koreans are Silla people, and Silla people are descendants of Jizi Koreans. So Koreans are descendants of Huaxia-Han nationality by blood.

South Korea was originally a country of China, but the Song Dynasty was too weak to help South Korea. Korea was controlled by Khitan Liao, Jurchen Jin and Mongolian Yuan, and gradually became a barbarian. This aroused the indignation of Korean officials and people. Finally, with the help of the Ming Dynasty, the pro-China North Korean general Li Chenggui led patriotic officials and people, overthrew the North Korean regime and established a pro-China regime. Li Chenggui asked the court for the name of the country, and Ming Taizu gave it the name of "North Korea". I hope they can carry forward Chinese culture on the Korean peninsula like Jizi Korea, which is the heritage of the Korean peninsula, go to Mongolia as soon as possible and become a civilized country again.

Because North Korea was a vassal state of the Ming Dynasty, compared with other countries, North Korea can be understood as a place in China, and its customs and habits are similar to those of China. So in the Ming Dynasty, people living in North Korea were Koreans, and people living in China were China people.

During the Ming Dynasty, many Koreans immigrated to the north of China. Although they still have their own genealogy (Koreans generally have genealogy), which proves that they immigrated from China, they are now classified as Koreans. Similarly, many Koreans come to China and become China people.

However, after the Manchu occupation of China, North Korea lost China's help in culture. Although I hated Manchu psychologically, it didn't help China to fight against Qing Dynasty and regain his sight. Therefore, it must be culturally independent. Therefore, gradually formed their own national habits. This also formed Koreans.

The Japanese occupied Korea a year before the Republic of China, and later helped the Manchu to occupy the territory of China and establish the puppet Manchukuo. In order to control the northeastern territory of China, the Japanese adopted the method of emigrating to the northeast. However, Japan has a limited population and is far from the northeast, so Japan has also moved some Koreans to the northeast. These Koreans are the ancestors of Koreans in China.