1. Eien era (987.4.5-989.8.8)
2. EienEien was a Japanese era after Kanna and before Eiso. This period spanned the years from April 987 through August 988. The reigning emperor was Ichijō-tennō .
Read “Eien” on English Wikipedia
Read “永延” on Japanese Wikipedia
Read “Eien” on DBpedia
Read “Eien” on English Wikipedia
Read “永延” on Japanese Wikipedia
Read “Eien” on DBpedia
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