Ryukyuan congratulatory mission to Edo
Historical term for a diplomatic mission sent by the Ryukyu Kingdom to Edo (Tokyo) to offer congratulations upon the succession of a new shogun. Compare with 謝恩使 (mission of gratitude).
See also: 謝恩使
The congratulatory mission was dispatched from the Ryukyu Kingdom to the Edo shogunate upon the change of shogun.