Category
page 11257 in Asia
Mongol invasions of Vietnam
13th-century military campaigns of the Mongol Empire and Yuan-dynasty China in Vietnam
1257 Samalas eruption
major eruption of the Samalas volcano in Indonesia
Kōgen
was a after Kenchō and before Shōka. This period spanned the years from October 1256 to March 1257. The reigning emperor was .