1. Ryukyuan mission to EdoSee also 謝恩使, See also 慶賀使
Wikipedia definition
2. Ryukyuan missions to EdoOver the course of Japan's Edo period, the Okinawan Kingdom of Ryūkyū sent eighteen missions to Edo (琉球江戸上り, ryūkyū edo nobori, "lit. 'the going up of Ryūkyū to Edo'), the capital of Tokugawa Japan. The unique pattern of these diplomatic exchanges evolved from models established by the Chinese, but without denoting any predetermined relationship to China or to the Chinese world order.
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