Answer:
China and Japan are geographically separated only by a relatively narrow stretch of ocean. China has strongly influenced Japan with its writing system, architecture, culture, religion, philosophy, and law. When Western countries forced Japan to open trading in the mid-19th century, Japan moved towards modernization (Meiji Restoration), viewing China as an antiquated civilization, unable to defend itself against Western forces in part due to the First and Second Opium Wars along with Anglo-French Expeditions from the 1840s to the 1860s. Japan's long chain of invasions and war crimes in China between 1894 and 1945 as well as modern Japan's attitude towards its past are major issues affecting current Sino-Japanese relations.The first mention of the Japanese archipelago was in the Chinese historic text Book of Later Han, in the year 57, in which it was noted that the Emperor of the Han dynasty gave a golden seal to Wa (Japan). The King of Na gold seal was discovered in northern Kyūshū in the eighteenth century.[1] From then on Japan was repeatedly recorded in Chinese historical texts, at first sporadically, but eventually continuously as Japan matured into a notable power in the region.
There is a Chinese tradition that the first Chinese Emperor, Qin Shi Huang, sent several hundred people to Japan to search for medicines of immortality. During the third century, Chinese travelers reported that inhabitants of Japan claimed ancestry from Wu Taibo, a king of the Wu state (located in modern Jiangsu and Zhejiang) during the Warring States era.[2][3] They recorded examples of Wu traditions including ritual teeth-pulling, tattooing and carrying babies on backs. Other records at the time show that Japan already had the same customs recognized today. These include clapping during prayers, eating from wooden trays and eating raw fish (also a traditional custom of Jiangsu and Zhejiang before pollution made this impractical). Kofun era traditions appear in the records as the ancient Japanese built earthen mound tombs.
The first Japanese personage mentioned by the Wei Zhi (Records of Wei) is Himiko, the female shaman leader of a country with hundreds of states called Yamataikoku. Modern historical linguists believe Yamatai was actually pronounced Yamato.During the Sui dynasty and Tang dynasty, Japan sent many students on a limited number of Imperial embassies to China, to help establish its own footing as a sovereign nation in northeast Asia. After the fall of the Korean confederated kingdom of Baekje (with whom Japan was closely allied) to combined Tang and Silla forces, Japan was forced to seek out the Chinese state on its own, which in those times was a treacherous undertaking, thus limiting the successes of Japanese overseas contacts during this time.
Important elements brought back from China (and some which were transmitted through Baekje to Japan) included Buddhist teachings, Chinese customs and culture, bureaucracy, architecture and city planning. The Japanese kimono is very similar to the clothing of the Tang Dynasty, and many historians believe that the Japanese started wearing robes like what Tang royalty wore, eventually adapting the garb to match Japanese culture. The capital city of Kyoto was also planned according to Feng Shui elements from the Chinese capital of Chang'an. During the Heian period, Buddhism became one of the major religions, alongside Shinto.
The use of the Chinese model of Imperial government ceased by the tenth century, overtaken by traditional Japanese clan and family rivalries (Soga–Mononobe, Taira–Minamoto).
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