*1839/5-12 ''[[Bansha no goku]]'' - Efforts are made to suppress ''[[Rangaku]]'' (Dutch/Western learning). A number of ''rangaku'' scholars, including [[Takano Chôei]] and [[Watanabe Kazan]], are arrested and imprisoned.
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*1839/4 Former shogun [[Tokugawa Ienari]] and his entourage move back in to the rebuilt Nishi-no-maru at [[Edo castle]].
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*1839/5-12 ''[[Bansha no goku]]'' - Efforts are made to suppress ''[[Rangaku]]'' (Dutch/Western learning). A number of ''rangaku'' scholars, including [[Takano Choei|Takano Chôei]] and [[Watanabe Kazan]], are arrested and imprisoned.
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*1839/12 Reconstruction is completed at Edo castle, following the destruction of the Nishi-no-maru the previous year.
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==Other Events==
==Other Events==
*[[Shieikan]] dôjô is established in Ichigaya, Edo, by [[Kondo Shusuke|Kondô Shûsuke]].
*[[Shieikan]] dôjô is established in Ichigaya, Edo, by [[Kondo Shusuke|Kondô Shûsuke]].