For those of you who may not know the importance of this discovery. Yamataikokum the first known Japanese regime and its ruler Himiko has been recorded only in China, the location of it was even the mystery. Oldest record(Kojiki, Nihon-shoki) by Japanese themselves were about 400 to 500 years from this. Chinese characters were imported(by sending students to China) to make records during that time. Japanese had no characters to records until then.