11th-century neologisms

was a after Kankō and before Kannin. This period spanned the years from December 1012 through April 1017. The reigning emperors were and .

was a after Chōhō and before Chōwa. This period spanned the years from July 1004 through December 1012. The reigning emperors were and .

was a after Chōwa and before Jian. This period spanned the years from April 1017 through February 1021. The reigning emperor was .

Japanese era from 1021 to 1024

Japanese era from 1024 to 1028

was a after Manju and before Chōryaku. This period spanned the years from July 1028 through April 1037. The reigning emperors were and .

was a after Eihō and before Kanji. This period spanned the years from February 1084 through April 1087. The reigning emperor was .

was a after Chōryaku and before Kantoku. This period spanned the years from November 1040 through November 1044. The reigning emperor was .

was a after Kōhei and before Enkyū. This period spanned the years from August 1065 through April 1069. The reigning emperors were and .

was a after Eishō and before Kōhei, spanning the years from January 1053 through August 1058. The reigning emperor was .

was a Japanese era name (年号, nengō, lit. year name) after Enkyū and before Jōryaku. This period spanned the years from August 1074 through November 1077. The reigning emperor was .

was a after Tengi and before Jiryaku. This period spanned the years from August 1058 through August 1065. The reigning emperor was .

was a after Eichō and before Kōwa. This period spanned the years from November 1097 through August 1099. The reigning emperor was .

Japanese era from April 1087 to December 1094

Japanese era from February 1046 to January 1053

Japanese era from August 1099 to February 1104

was a after Kanji and before Eichō. This period spanned the years from December 1094 through December 1096. The reigning emperor was .

was a Japanese era name (年号, nengō, lit. year name) after Jōhō and before Eihō. This period spanned the years from November 1077 through February 1081. The reigning emperor was .

was a after Kahō and before Jōtoku. This period spanned the years from December 1096 through November 1097. The reigning emperor was .

was a after Jiryaku and before Jōhō. This period spanned the years from April 1069 through August 1074. The reigning emperors were and .

was a after Jōryaku and before Ōtoku. This period spanned the years from February 1081 through April 1084. The reigning emperor was .

was a after Chōkyū and before Eishō, This period spanned the years from November 1044 through April 1046. The reigning emperors were and .