Was Yayoi Japanese a refugee in China during the Spring and Autumn Period and the Warring States Period?

Yayoi culture, from 300 BC to 250 AD, just corresponds to the late Warring States period and Qin and Han Dynasties in China. In the Yayoi cultural site, a large number of bronze swords, bronze purlins and bronze priests have also been unearthed. Japanese academic circles believe that the raw materials and technologies for processing these cultural relics come from China. Japanese scholar Saburo Yagi said that there were bronze swords and bronze purlins in Shandong, China. Umehara Sueji and other scholars said: "The discovery of copper purlin in Japan undoubtedly means the eastward crossing of Qin and Han people in China". In addition, China ancient cymbals, ancient mirrors, Qin-style daggers and Chinese characters were unearthed in the ruins of Yayoi-machi.

During the pre-Qin period, the Shang Dynasty, the Spring and Autumn Period and the Warring States Period, China began to immigrate to Japan. 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.

Egami Namio, a professor of archaeology at the University of Tokyo, once pointed out: "The transformation from rope culture to yayoi culture is a qualitative leap, and its transformation is sudden. Therefore, it was not the original rope-patterned cultural people on the Japanese archipelago who created the Yayoi culture, but the foreign people who already had highly developed hydroponic agricultural technology at that time. " This foreign nation must be an immigrant from China. Therefore, Japanese historians agree that "Yayoi culture is a culture from China."