じょうがん
貞観
1. Jōgan era (859.4.15-877.4.16)
2. JōganJōgan was a Japanese era name after Ten'an and before Gangyō. This period spanned the years from April 859 through April 877. The two reigning emperors were Seiwa-tennō and Yōzei-tennō .
Read “Jōgan” on English Wikipedia
Read “貞観” on Japanese Wikipedia
Read “Jōgan” on DBpedia
Read “Jōgan” on English Wikipedia
Read “貞観” on Japanese Wikipedia
Read “Jōgan” on DBpedia
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