*''[[Rangaku kaitei]]'', a primer on [[Rangaku|Dutch studies]], is published.
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*''[[Rangaku kaitei]]'', a primer on [[Rangaku|Dutch studies]], is published. It is the first unsuppressed publication & circulation in Japan of a book containing Dutch writing.
*''[[Ryukyu zatsuwa|Ryûkyû zatsuwa]]'' is published.
*''[[Ryukyu zatsuwa|Ryûkyû zatsuwa]]'' is published.