Kyūyō
The Kyūyō-kiji (球陽記事, Okinawan:Chūyō chiji), generally abridged in Kyūyō (球陽, Okinawan:Chūyō) is an official history of the Ryūkyū Kingdom, compiled by a group of historians led by Tei Heitetsu Kohagura Uēkata Yūjitsu (鄭秉哲 古波蔵親方祐實) between year 8 of the Qianlong era (1743) and year 10 of the same era (1745), at the request of king Shō Kei. It includes a “central” (本巻) part (twenty-two main volumes and four appendix volumes) and an “external” (外巻) part (three main volumes and one appendix volume).