Tengen (天元) was a Japanese era (年号, nengō, "year name") after Jōgen and before Eikan. This period spanned the years from November 978 through April 983. The reigning emperor was En'yū-tennō (円融天皇).
Tengen (天元) was a Japanese era (年号, nengō, "year name") after Jōgen and before Eikan. This period spanned the years from November 978 through April 983. The reigning emperor was En'yū-tennō (円融天皇). (en)
Tengen (天元) was a Japanese era (年号, nengō, "year name") after Jōgen and before Eikan. This period spanned the years from November 978 through April 983. The reigning emperor was En'yū-tennō (円融天皇). (en)
