*1841 - An envoy from Tsushima travels to [[Pusan]] and requests that a mission be sent to Tsushima, but none ever is.
*1841 - An envoy from Tsushima travels to [[Pusan]] and requests that a mission be sent to Tsushima, but none ever is.
*1844 - The shogunate requests, via Tsushima, that Korea send a mission in [[1846]], but this is ultimately cancelled.
*1844 - The shogunate requests, via Tsushima, that Korea send a mission in [[1846]], but this is ultimately cancelled.
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*1847 - The shogunate decides that the next Korean embassy will be received in Osaka, rather than coming all the way to Edo, and that it will be postponed until [[1856]]. This embassy also ultimately never takes place.<ref name=koyo100/>