Around this time, San Guo Zhi first referred to the nation of "Wa (Japan)". According to this work, Wa was "divided into more than 100 tribes", and for some 70 or 80 years there were many disturbances and wars. About 30 communities had been united by a sorceress-queen named Himiko. She sent an emissary named Nashime (:ja:難升米, Nashonmi in Chinese) with a tribute of slaves and cloth to Daifang in China, establishing diplomatic relations with Cao Wei (the Chinese kingdom of Wei).