Jōgan

Jōgan (貞観) was a Japanese era name (年号, nengō, "year name") after Ten'an and before Gangyō. This period spanned the years from April 859 through April 878. The two reigning emperors were Seiwa-tennō (清和天皇) and Yōzei-tennō (陽成天皇).

Part of a series on the
History of Japan
List
Paleolithicbefore 14,000 BC
Jōmon14,000 – 1000 BC
Yayoi
1000 BC – 300 AD
300 AD – 538 AD
538 – 710
Nara
710 – 794
794–1185
1185–1333
Muromachi
  • Nanboku-chō period
  • Sengoku period
1336–1573
1573–1603
Edo (Tokugawa)
1603–1868
Meiji
1868–1912
1912–1926
Shōwa
1926–1989
1989–2019
2019–present
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