Tenpō calendar

was a Japanese lunisolar calendar (genka reki..Nussbaum, Louis-Frédéric. (2005). "Calendar" in Japan Encyclopedia, p. 98.  It was published in the Tenpō era (183-1844).Orchiston, Wayne et al. (2011). Highlighting the History of Astronomy in the Asia-Pacific Region, p. 155.  It was in use in the late Edo period.

History
The  Tenpō-reki system was the work of Shibukawa Kagesuke.  This was the last traditional calendar system created by Japanese astronomers and mathematicians.

The Tenpō calendar was set aside when Japan adopted the Western calendar in 1872 (Meiji 5).Bramsen, William. (1880). Japanese chronological tables, p. 25.

Related pages
 Japanese calendar
 Sexagenary cycle
 Tenpō
 Jōkyō calendar
 Kansei calendar
 Hōryaku calendar

References

Other websites
 National Diet Library, "The Japanese Calendar"

Category:Calendars