Wikipedia
Chōgen
was a after Manju and before Chōryaku. This period spanned the years from July 1028 through April 1037. The reigning emperors were and .
Chōgen (monk)
(1121-1206), also known as , was a Japanese Buddhist monk. From 1181 he devoted twenty-five years of his life to the endowment and rebuilding of Tōdai-ji after its destruction in war.