From Wikipedia, the free encyclopedia.
Keio (慶応 Keiō) was a Japanese era name. Keio University was named after this era name.
Start: May 1, 1865 (7th day of the 5th month)
End: October 22, 1868 (7th day of the 9th month)
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Preceded by: Genji | Japanese era name |
Succeeded by: Meiji |

