1. Kōka era (1844.12.2-1848.2.28)
2. KōkaKōka was a Japanese era name after Tenpō and before Kaei. This period spanned the years from December 1844 through February 1848. The reigning emperors were Ninkō-tennō and Kōmei-tennō .
Read “Kōka” on English Wikipedia
Read “弘化” on Japanese Wikipedia
Read “Kōka” on DBpedia
Read “Kōka” on English Wikipedia
Read “弘化” on Japanese Wikipedia
Read “Kōka” on DBpedia
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