Changes

*Ansei 1/12/9 (Jan 26) The [[USS Powhatan|USS ''Powhatan'']] returns to [[Shimoda]] with the ratification instruments for the [[Convention of Kanagawa]], signed the previous year.

*Ansei 1/12/9 (Jan 26) The [[USS Powhatan|USS ''Powhatan'']] returns to [[Shimoda]] with the ratification instruments for the [[Convention of Kanagawa]], signed the previous year.

*Ansei 1/12/21 (Feb 7) [[Treaty of Shimoda]] signed between Russia and Japan.

*Ansei 1/12/21 (Feb 7) [[Treaty of Shimoda]] signed between Russia and Japan.

*1855/1/5 (Feb 21) Commander Adams of the ''Powhatan'' and Japanese representatives exchange ratified copies of the Convention of Kanagawa, completing the agreement process, and the ''Powhatan'' departs Japan the following day.

*1855/1/5 (Feb 21) Commander [[Henry A. Adams]] of the ''Powhatan'' and Japanese representatives exchange ratified copies of the Convention of Kanagawa, completing the agreement process, and the ''Powhatan'' departs Japan the following day.

*1855/1/21 (March 9) The [[Treaty of Amity (Ryukyu-US)|Ryûkyû-USA Treaty of Amity]] is ratified by the US Congress and officially announced by President Franklin Pierce.

*1855/1/21 (March 9) The [[Treaty of Amity (Ryukyu-US)|Ryûkyû-USA Treaty of Amity]] is ratified by the US Congress and officially announced by President Franklin Pierce.

*1855/5/19 A [[Ryukyuan mission to Edo]] departs from [[Naha]].

*1855/5/19 A [[Ryukyuan mission to Edo]] departs from [[Naha]].