The earliest written records about people in Japan are from Chinese sources. These sources spoke about the Wa people, the direct ancestors of the Yamato and other Japonic agriculturalists. The Wa of Na received a golden seal from the Emperor Guangwu of the Later Han dynasty. This event was recorded in the "Book of the Later Han" compiled by Fan Ye in the 5th century. The seal itself was discovered in northern Kyūshū in the 18th century. Early Chinese historians described Wa as a land of hundreds of scattered tribal communities. Third-century Chinese sources reported that the Wa/early Yamato lived on raw fish, vegetables, and rice served on bamboo and wooden trays, clapped their hands in worship (something still done in Shinto shrines today), and built earthen-grave mounds. They also maintained vassal-master relations, collected taxes, had provincial granaries and markets, and observed mourning. The "Wei Zhi" (), which is part of the Records of the three Kingdoms, first mentions Yamataikoku and Queen Himiko in the 3rd century. According to the record, Himiko assumed the throne of Wa, as a spiritual leader, after a major civil war. Her younger brother was in charge of the affairs of state, including diplomatic relations with the Chinese court of the Kingdom of Wei. When asked about their origins by the Wei embassy, the people of Wa claimed to be descendants of the people of Wu, a historic figure of the Wu Kingdom around the Yangtze Delta of China, however this is disputed.