 According to Chinese chronicles, about 2,000 years ago, the Emperor Guangwu of Han, a dynasty of ancient China, granted an envoy from Japan a golden block seal, which was to be presented to the envoy's king.The seal was engraved with the characters 「漢委奴国王」"(Han wa na koku-ō"), meaning "[From the King of] Han, presented to the King of Nakoku".The seal can be seen in the Fukuoka City Museum.