Genkō may refer to:
*
Genkō (first) (), Japanese historical era from 1321 to 1324
*
Genkō (second) (), Japanese historical era from 1331 to 1334
* Genkō, Japanese name for
Mongol invasions of Japan
Major military efforts were taken by Kublai Khan of the Yuan dynasty in 1274 and 1281 to conquer the Japanese archipelago after the submission of the Korean kingdom of Goryeo to Vassal state, vassaldom. Ultimately a failure, the invasion attemp ...
of 1274 and 1281
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