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From Wikipedia, the free encyclopedia

Branched ("Edasen" 枝銭) Mon coins of the Tenpō period.

Tenpō (天保 ?) was a Japanese era name (年号, nengō, ?, lit. "year name") after Bunsei and before Kōka. The period spanned the years from 1830 through 1844. The reigning emperor was Ninko-tennō (仁孝天皇 ?).


Change of era

  • Tenpō gannen (天保元年 ?); December 10, 1830: In the 13th year of Bunsei, the new era name of Tenpō (meaning "Heavenly Imperial Protection") was created to mark the disasters of a great fire in Edo and an earthquake at Kyoto. The new era name was created from an hortatory aphorism: "Respect and worship the Ways of heaven. Eternally keep the Mandate of Heaven" (欽崇道、永天命).

Events of the Tenpō era

Japanese drawing of the Morrison, anchored in front of Uraga in 1837.
  • Tenpō 14 (April 25, 1843): Earthquake in Yezo, Kushiro, Nemuro (Latitude: 41.800/Longitude: 144.800), 8.4 magnitude on the Richter Scale.[1]
  • Tenpō 15 (1844):
    • Saitō Hajime born in Edo.
    • Tenpō Calendar Revision.
    • Great Tenpō Famine.
    • Tenpō Insurrection in Chōshū.
    • Tenpō Reform.
    • Fire in Edo Castle.


  1. ^ a b Online "Significant Earthquake Database", U.S. National Oceanic and Atmospheric Administration (NOAA), National Geophysical Data Center (NGDC)
  2. ^ Hall, John Whitney et al. (1991). Early Modern Japan, p. 21.


External links

  • "The Japanese Calendar", National Diet Library—historical overview plus illustrative images from library's collection
Tenpō 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th
Gregorian 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844

Preceded by:

Era or nengō:

Succeeded by:

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