The domain was a political and economic abstraction based on periodic cadastral surveys and projected agricultural yields.
[3] After 1609, the Ryukyuan kings were forced to be vassals of the Shimazu clan of Satsuma and the islands were occasionally viewed as a province of Japan.
[7] After the Taiwan Expedition of 1874, Japan's role as the protector of the Ryukyuan people was acknowledged; but fiction of the Ryukyu Kingdom's independence was partially maintained until 1879.
[7] In 1879, Shō Tai was forced to abdicate and move to Tokyo, Ryukyu Domain was abolished, and Okinawa Prefecture was established.
[11] In 1876, Kōchi Chōjō gathered other Ryukyuans who, like himself, had fled for China, including Rin Seikō (林世功) and Sai Taitei (蔡大鼎).