Ryukyu Kingdom and Beijing's Tongzhou District share historical ties On July 4, 2023, during his visit to Beijing, Japan's Okinawa Governor Denny Tamaki paid his respects at the ruins of the Ryukyu Kingdom's graveyard in Zhangjiawan, Tongzhou District. His visit underscored a deep respect for historical and cultural ties. For over 500 years, the Ryukyu Kingdom maintained friendly relations with China, sending tribute missions to the Ming and Qing dynasty courts until 1875, when Japan forced the