Nakoku

Nakoku (奴国, Nakoku, Na-no-Kuni) was a state[1] which was located in and around modern-day Fukuoka City, on the Japanese island of Kyūshū, from the 1st to early 3rd centuries.

This seal was discovered over 1500 years later, by an Edo period farmer on Shikanoshima Island, thus helping to verify the existence of Nakoku, which was otherwise known only from the ancient chronicles.

30 of the Chinese Book of Wei from the Records of the Three Kingdoms, titled "The Account of the Easterners: A Note on the Wa" (Chinese: 東夷傳‧倭人條), to the continued existence of Nakoku in the 3rd century, naming the officials and stating that it contains over 20,000 homes.

This section is known in Japan as the Gishi Wajinden (魏志倭人伝, Records of Wei: An Account of the Wa).

Some believe that Nakoku may also correspond to Na-no-Agata (儺県), a principality which preceded Fukuoka City.