Kenchō

Kenchō (建長) was a Japanese era name (年号, nengō, lit.

"year name") after Hōji and before Kōgen.

This period spanned the years from March 1249 to October 1256.

[1] The reigning emperor was Go-Fukakusa-tennō (後深草天皇).

[2] This article about a Japanese era name is a stub.