Nin'an

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Nin'an (仁安), also known as Ninnan, was a Japanese era name (年号, nengō, lit. "year name") after Eiman and before Kaō. This period spanned the years from August 1166 through April 1169.^[1] The reigning emperors were Rokujō-tennō (六条天皇) and Takakura-tennō (高倉天皇).^[2]