1840
Tenpô 11 (天保十一年)
Timeline of 1840
- 1840/7 Representatives of the Dutch East India Company arrive at Nagasaki and inform of the outbreak of the Opium War.
- 1840/9 Takashima Shûhan offers a proposal to the shogunate on the production and use of artillery.
- 1840/11 Sanbôryôchigae - The daimyo of Shonai han (Dewa province), Kawagoe han (Musashi province), and Nagaoka han (Echigo province) are moved to one another's territories.
Other Events of 1840
- James Hepburn arrives in China.
- Manabe Akikatsu is named rôjû.
- The Opium War begins in China (~1842).
Births and Deaths
- Prime Minister Kuroda Kiyotaka is born (d. 1900).
- Harada Sanosuke, member of the Shinsengumi, is born (d. 1868).
- Itô Tetsugorô, member of the Shinsengumi, is born (d. 1868).
- Alfred T. Mahan is born (d. 1914).
- Shibusawa Eiichi is born (d. 1931).
- Yoshimura Kan'ichirô, member of the Shinsengumi, is born (d. 1868).
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