Yayoi culture between Qin and Han dynasties

China's Qin and Han dynasties (22 1-220 BC) are equivalent to the yayoi period (300-300 BC) when Japanese islands used stones at the same time. The radiation and spread of China culture to Japan during the Qin and Han Dynasties greatly shortened the process of Japanese islands leaving the state of ignorance and entering a civilized society.

During the Qin and Han Dynasties, the spread of China culture to Japan was mainly accomplished by China immigrants. In fact, China's immigration to Japan began in Shang Dynasty, Spring and Autumn Period and Warring States Period before Qin Dynasty. At that time, feudal lords fought for hegemony and wars were frequent. Many people from northern China, such as Qi, Lu, Yan and Zhao Zhimin, fled to North Korea, and some indirectly or directly fled to Japan. During the Qin and Han Dynasties, China's immigration to Japan increased. "Since Chen Sheng, the world has rebelled against Qin, and Yan, Qi and Zhao Min have taken refuge in North Korea for tens of thousands of people". Among them, Fu Su Zong and Hu Hai Zong of Qin Shihuang both fled to Japan.