Japanese era from January 1831 to January 1845 From Wikipedia, the free encyclopedia
Tenpō (天保) was a Japanese era name (年号,, nengō,, lit. "year name"), also known as Tempō, after Bunsei and before Kōka. The period started in December 1830 and ended in December 1844.[1] During this time, the emperor was Ninko-tennō (仁孝天皇).[2]
12 December 1840 (Tenpō 11, 19th day of the 11th month): Former-Emperor Kōkaku died.[10]
25 April 1843 (Tenpō 14, 25th day of the 3rd month): Earthquake in Hokkaido (Latitude: 41.800/Longitude: 144.800), 8.4 magnitude on the Richter Scale.[4]
1844 (Tenpō 15): Errors in the lunar calendar were corrected. The new calendar was called the Tenpō-Jinin. It was in use in Japan until 1872 when the Gregorian calendar was adopted.[11]
Hall, John W.; Hall, John Whitney; Brown, Delmer M.; Jansen, Marius B.; McCullough, William H.; Kanai, Madoka; Shively, Donald H.; Yamamura, Kozo; Duus, Peter (1988). The Cambridge History of Japan. Cambridge University Press. p.21. ISBN978-0-521-22355-3.