Jōgan

Jōgan ( Japanese 貞 観 ) is a Japanese era ( Nengō ) from May 859 to May 877 according to the Gregorian calendar . The previous era name is Ten'an , the following era is called Gangyō . The era falls during the reign of the emperors ( Tennō ) Seiwa and Yōzei .

The first day of the Jōgan era corresponds to May 20, 859, the last day was May 31, 877. The Jōgan era lasted 19 years or 6587 days.

Events

• 864 eruptions of Mount Fuji
• 869 Jōgan earthquake on the Sanriku coast
• 866 Ōtenmon incident ( 応 天 門 の 変 Ōtenmon no Hen )
• 868 earthquakes in Harima province (according to information in Nihon Sandai Jitsuroku )
• 869 Pirate invasion from the Korean city of Silla in the province of Chikuzen

Individual evidence

1. ↑ ^{a b} Reinhard Zöllner: Japanese calendar. A manual . iudicium, Munich 2003, ISBN 3-89129-783-1 , p. 25, 100 .

Jōgan	1	2	3	4th	5	6th	7th	8th	9	10	11	12	13	14th	15th	16	17th	18th	19th
greg.	859	860	861	862	863	864	865	866	867	868	869	870	871	872	873	874	875	876	877

Previously: Ten'an

Nengō : Jōgan

Hereinafter : Gangyō