乐浪郡
The people of Japan make their first unambiguous appearance in written history in this book ("Book of Han", Volume 28, Treatise on Geography), in which it is recorded, "The people of Wo are located across the ocean from Lelang Commandery, are divided into more than one hundred tribes, and come to offer tribute from time to time." It is later recorded that in 57, the southern Wa kingdom of Na sent an emissary named Taifu to pay tribute to Emperor Guangwu and received a golden seal. The seal itself was discovered in northern Kyūshū in the 18th century. According to the "Book of Wei", the most powerful kingdom on the archipelago in the third century was called Yamatai and was ruled by the legendary Queen Himiko.