Bombyx mori silkworms for the production of raw silk, has been under way for at least 5,000 years in China, from where it spread to India, Korea, Japan, and the West. The silkworm was domesticated from the wild silkmoth "Bombyx mandarina", which has a range from northern India to northern China, Korea, Japan, and the far eastern regions of Russia. The domesticated silkworm derives from Chinese rather than Japanese or Korean stock. Silkworms were unlikely to have been domestically bred before the Neolithic age. Before then, the tools to manufacture quantities of silk thread had not been developed. The domesticated "B. mori"
Kambei Mori Kambei Mori, OCLC/WorldCat encompasses 2 works in 3 publications in 1 language and 5 library holdings. Kambei Mori Kambei Mori or , also known as Mōri Kambei Shigeyoshi , was a Japanese mathematician in the Edo period. Some 16th-century sources suggest that Mori studied in China, but such claims are inconclusive or rejected by historians. What is known with certainty is that he started a school in Kyoto and he wrote several influential and widely discussed books which dealt with arithmetic and the use of the abacus. One of his students was Yoshida Mitsuyoshi the author of "Jinkōki," which is