Jōgan 12 (貞観12) — 870 AD
Western Gregorian year
870
history Jōgan 12 (貞観12)
Jōgan 11 (貞観11) or Jōgan 12 (貞観12)
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info Dual era
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Calculation tip
Year 1 of an era is often referred to as "Gannen" (元年) in historical documents.
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Overlapping years
Transition years contain months from two different eras (e.g. 1989 = Shōwa 64 / Heisei 1).
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Historical context
The Japanese era system (gengō) has been used since the 7th century — one of the longest continuously used reign-name systems in the world.
Historical context
The Japanese era system (gengō) has been used since the 7th century — one of the longest continuously used reign-name systems in the world.
Photo: DXR · CC BY-SA 4.0
person
Born in Jōgan 12 (貞観12)
1155
years old
pets
Zodiac
Tiger (寅)
Zodiac year
Holiday data is only available for years 1970 and later.