Chōgen era (1028-1037)
Japanese era name (年号) spanning from 1028 to 1037 CE. Used in historical contexts.
During the Chōgen era, important ceremonies were held at the imperial court.
Standard kanji spelling for this era name.
The era name 長元 (Chōgen) was adopted in the Heian period. The exact derivation is uncertain, but like many era names it likely draws from classical Chinese texts.