| Taika1 |
645 |
| Taika 2 | 646 |
| Taika 3 | 647 |
| Taika 4 | 648 |
| Taika 5 | 649 |
| Hakuchi 1 | 650 |
| Hakuchi 2 | 651 |
| Hakuchi 3 | 652 |
| Hakuchi 4 | 653 |
| Hakuchi 5 --> None | 654 |
| Shuchō 1 | 686 |
| Taihō 1 | 701 |
| Taihō 2 | 702 |
| Taihō 3 | 703 |
| Keiun 1 | 704 |
| Keiun 2 | 705 |
| Keiun 3 | 706 |
| Keiun 4 | 707 |
| Wadō 1 | 708 |
| Wadō 2 | 709 |
| Wadō 3 | 710 |
| Wadō 4 | 711 |
| Wadō 5 | 712 |
| Wadō 6 | 713 |
| Wadō 7 | 714 |
| Reiki 1 | 715 |
| Reiki 2 | 716 |
| Yōrō 1 | 717 |
| Yōrō 2 | 718 |
| Yōrō 3 | 719 |
| Yōrō 4 | 720 |
| Yōrō 5 | 721 |
| Yōrō 6 | 722 |
| Yōrō 7 | 723 |
| Jinki 1 | 724 |
| Jinki 2 | 725 |
| Jinki 3 | 726 |
| Jinki 4 | 727 |
| Jinki 5 | 728 |
| Tempyō 1 | 729 |
| Tempyō 2 | 730 |
| Tempyō 3 | 731 |
| Tempyō 4 | 732 |
| Tempyō 5 | 733 |
| Tempyō 6 | 734 |
| Tempyō 7 | 735 |
| Tempyō 8 | 736 |
| Tempyō 9 | 737 |
| Tempyō 10 | 738 |
| Tempyō 11 | 739 |
| Tempyō 12 | 740 |
| Tempyō 13 | 741 |
| Tempyō 14 | 742 |
| Tempyō 15 | 743 |
| Tempyō 16 | 744 |
| Tempyō 17 | 745 |
| Tempyō 18 | 746 |
| Tempyō 19 | 747 |
| Tempyō 20 | 748 |
| Tempyō Kampō 1-->Tempyō Shohō 1 | 749 |
| Tempyō Shohō 2 | 750 |
| Tempyō Shohō 3 | 751 |
| Tempyō Shohō 4 | 752 |
| Tempyō Shohō 5 | 753 |
| Tempyō Shohō 6 | 754 |
| Tempyō Shohō 7 | 755 |
| Tempyō Shohō 8 | 756 |
| Tempyō Hōji 1 | 757 |
| Tempyō Hōji 2 | 758 |
| Tempyō Hōji 3 | 759 |
| Tempyō Hōji 4 | 760 |
| Tempyō Hōji 5 | 761 |
| Tempyō Hōji 6 | 762 |
| Tempyō Hōji 7 | 763 |
| Tempyō Hōji 8 | 764 |
| Tempyō Jingo 1 | 765 |
| Tempyō Jingo 2 | 766 |
| Jingo Keiun 1 | 767 |
| Jingo Keiun 2 | 768 |
| Jingo Keiun 3 | 769 |
| Hōki 1 | 770 |
| Hōki 2 | 771 |
| Hōki 3 | 772 |
| Hōki 4 | 773 |
| Hōki 5 | 774 |
| Hōki 6 | 775 |
| Hōki 7 | 776 |
| Hōki 8 | 777 |
| Hōki 9 | 778 |
| Hōki 10 | 779 |
| Hōki 11 | 780 |
| Ten'ou 1 | 781 |
| Enryaku 1 | 782 |
| Enryaku 2 | 783 |
| Enryaku 3 | 784 |
| Enryaku 4 | 785 |
| Enryaku 5 | 786 |
| Enryaku 6 | 787 |
| Enryaku 7 | 788 |
| Enryaku 8 | 789 |
| Enryaku 9 | 790 |
| Enryaku 10 | 791 |
| Enryaku 11 | 792 |
| Enryaku 12 | 793 |
| Enryaku 13 | 794 |
| Enryaku 14 | 795 |
| Enryaku 15 | 796 |
| Enryaku 16 | 797 |
| Enryaku 17 | 798 |
| Enryaku 18 | 799 |
| Enryaku 19 | 800 |
| Enryaku 20 | 801 |
| Enryaku 21 | 802 |
| Enryaku 22 | 803 |
| Enryaku 23 | 804 |
| Enryaku 24 | 805 |
| Daidō 1 | 806 |
| Daidō 2 | 807 |
| Daidō 3 | 808 |
| Daidō 4 | 809 |
| Kōnin 1 | 810 |
| Kōnin 2 | 811 |
| Kōnin 3 | 812 |
| Kōnin 4 | 813 |
| Kōnin 5 | 814 |
| Kōnin 6 | 815 |
| Kōnin 7 | 816 |
| Kōnin 8 | 817 |
| Kōnin 9 | 818 |
| Kōnin 10 | 819 |
| Kōnin 11 | 820 |
| Kōnin 12 | 821 |
| Kōnin 13 | 822 |
| Kōnin 14 | 823 |
| Tenchō 1 | 824 |
| Tenchō 2 | 825 |
| Tenchō 3 | 826 |
| Tenchō 4 | 827 |
| Tenchō 5 | 828 |
| Tenchō 6 | 829 |
| Tenchō 7 | 830 |
| Tenchō 8 | 831 |
| Tenchō 9 | 832 |
| Tenchō 10 | 833 |
| Shōwa 1 | 834 |
| Shōwa 2 | 835 |
| Shōwa 3 | 836 |
| Shōwa 4 | 837 |
| Shōwa 5 | 838 |
| Shōwa 6 | 839 |
| Shōwa 7 | 840 |
| Shōwa 8 | 841 |
| Shōwa 9 | 842 |
| Shōwa 10 | 843 |
| Shōwa 11 | 844 |
| Shōwa 12 | 845 |
| Shōwa 13 | 846 |
| Shōwa 14 | 847 |
| Kajō 1 | 848 |
| Kajō 2 | 849 |
| Kajō 3 | 850 |
| Ninju 1 | 851 |
| Ninju 2 | 852 |
| Ninju 3 | 853 |
| Saikō 1 | 854 |
| Saikō 2 | 855 |
| Saikō 3 | 856 |
| Ten'an 1 | 857 |
| Ten'an 2 | 858 |
| Jōgan 1 | 859 |
| Jōgan 2 | 860 |
| Jōgan 3 | 861 |
| Jōgan 4 | 862 |
| Jōgan 5 | 863 |
| Jōgan 6 | 864 |
| Jōgan 7 | 865 |
| Jōgan 8 | 866 |
| Jōgan 9 | 867 |
| Jōgan 10 | 868 |
| Jōgan 11 | 869 |
| Jōgan 12 | 870 |
| Jōgan 13 | 871 |
| Jōgan 14 | 872 |
| Jōgan 15 | 873 |
| Jōgan 16 | 874 |
| Jōgan 17 | 875 |
| Jōgan 18 | 876 |
| Genkei (or Gangō) 1 | 877 |
| Genkei (or Gangō) 2 | 878 |
| Genkei (or Gangō) 3 | 879 |
| Genkei (or Gangō) 4 | 880 |
| Genkei (or Gangō) 5 | 881 |
| Genkei (or Gangō) 6 | 882 |
| Genkei (or Gangō) 7 | 883 |
| Genkei (or Gangō) 8 | 884 |
| Ninna 1 | 885 |
| Ninna 2 | 886 |
| Ninna 3 | 887 |
| Ninna 4 | 888 |
| Kampyō 1 | 889 |
| Kampyō 2 | 890 |
| Kampyō 3 | 891 |
| Kampyō 4 | 892 |
| Kampyō 5 | 893 |
| Kampyō 6 | 894 |
| Kampyō 7 | 895 |
| Kampyō 8 | 896 |
| Kampyō 9 | 897 |
| Shōtai 1 | 898 |
| Shōtai 2 | 899 |
| Shōtai 3 | 900 |
| Enghi 1 | 901 |
| Enghi 2 | 902 |
| Enghi 3 | 903 |
| Enghi 4 | 904 |
| Enghi 5 | 905 |
| Enghi 6 | 906 |
| Enghi 7 | 907 |
| Enghi 8 | 908 |
| Enghi 9 | 909 |
| Enghi 10 | 910 |
| Enghi 11 | 911 |
| Enghi 12 | 912 |
| Enghi 13 | 913 |
| Enghi 14 | 914 |
| Enghi 15 | 915 |
| Enghi 16 | 916 |
| Enghi 17 | 917 |
| Enghi 18 | 918 |
| Enghi 19 | 919 |
| Enghi 20 | 920 |
| Enghi 21 | 921 |
| Enghi 22 | 922 |
| Enchō 1 | 923 |
| Enchō 2 | 924 |
| Enchō 3 | 925 |
| Enchō 4 | 926 |
| Enchō 5 | 927 |
| Enchō 6 | 928 |
| Enchō 7 | 929 |
| Enchō 8 | 930 |
| Shōhei (or Jōhei) 1 | 931 |
| Shōhei (or Jōhei) 2 | 932 |
| Shōhei (or Jōhei) 3 | 933 |
| Shōhei (or Jōhei) 4 | 934 |
| Shōhei (or Jōhei) 5 | 935 |
| Shōhei (or Jōhei) 6 | 936 |
| Shōhei (or Jōhei) 7 | 937 |
| Tengyō (or Tenkyō or Tenkei) 1 | 938 |
| Tengyō (or Tenkyō or Tenkei) 2 | 939 |
| Tengyō (or Tenkyō or Tenkei) 3 | 940 |
| Tengyō (or Tenkyō or Tenkei) 4 | 941 |
| Tengyō (or Tenkyō or Tenkei) 5 | 942 |
| Tengyō (or Tenkyō or Tenkei) 6 | 943 |
| Tengyō (or Tenkyō or Tenkei) 7 | 944 |
| Tengyō (or Tenkyō or Tenkei) 8 | 945 |
| Tengyō (or Tenkyō or Tenkei) 9 | 946 |
| Tenryaku 1 | 947 |
| Tenryaku 2 | 948 |
| Tenryaku 3 | 949 |
| Tenryaku 4 | 950 |
| Tenryaku 5 | 951 |
| Tenryaku 6 | 952 |
| Tenryaku 7 | 953 |
| Tenryaku 8 | 954 |
| Tenryaku 9 | 955 |
| Tenryaku 10 | 956 |
| Tentoku 1 | 957 |
| Tentoku 2 | 958 |
| Tentoku 3 | 959 |
| Tentoku 4 | 960 |
| Ōwa 1 | 961 |
| Ōwa 2 | 962 |
| Ōwa 3 | 963 |
| Kōhō 1 | 964 |
| Kōhō 2 | 965 |
| Kōhō 3 | 966 |
| Kōhō 4 | 967 |
| Anna 1 | 968 |
| Anna 2 | 969 |
| Tenroku 1 | 970 |
| Tenroku 2 | 971 |
| Tenroku 3 | 972 |
| Ten'en 1 | 973 |
| Ten'en 2 | 974 |
| Ten'en 3 | 975 |
| Jōghen 1 | 976 |
| Jōghen 2 | 977 |
| Tenghen 1 | 978 |
| Tenghen 2 | 979 |
| Tenghen 3 | 980 |
| Tenghen 4 | 981 |
| Tenghen 5 | 982 |
| Eikan 1 | 983 |
| Eikan 2 | 984 |
| Kanna 1 | 985 |
| Kanna 2 | 986 |
| Eien 1 | 987 |
| Eien 2 | 988 |
| Eien 3 | 989 |
| Shōryaku 1 | 990 |
| Shōryaku 2 | 991 |
| Shōryaku 3 | 992 |
| Shōryaku 4 | 993 |
| Shōryaku 5 | 994 |
| Chōtoku 1 | 995 |
| Chōtoku 2 | 996 |
| Chōtoku 3 | 997 |
| Chōtoku 4 | 998 |
| Chōhō 1 | 999 |
| Chōhō 2 | 1000 |
| Chōhō 3 | 1001 |
| Chōhō 4 | 1002 |
| Chōhō 5 | 1003 |
| Kankō 1 | 1004 |
| Kankō 2 | 1005 |
| Kankō 3 | 1006 |
| Kankō 4 | 1007 |
| Kankō 5 | 1008 |
| Kankō 6 | 1009 |
| Kankō 7 | 1010 |
| Kankō 8 | 1011 |
| Chōwa 1 | 1012 |
| Chōwa 2 | 1013 |
| Chōwa 3 | 1014 |
| Chōwa 4 | 1015 |
| Chōwa 5 | 1016 |
| Kannin 1 | 1017 |
| Kannin 2 | 1018 |
| Kannin 3 | 1019 |
| Kannin 4 | 1020 |
| Jian 1 | 1021 |
| Jian 2 | 1022 |
| Jian 3 | 1023 |
| Manju 1 | 1024 |
| Manju 2 | 1025 |
| Manju 3 | 1026 |
| Manju 4 | 1027 |
| Chōghen 1 | 1028 |
| Chōghen 2 | 1029 |
| Chōghen 3 | 1030 |
| Chōghen 4 | 1031 |
| Chōghen 5 | 1032 |
| Chōghen 6 | 1033 |
| Chōghen 7 | 1034 |
| Chōghen 8 | 1035 |
| Chōghen 9 | 1036 |
| Chōryaku 1 | 1037 |
| Chōryaku 2 | 1038 |
| Chōryaku 3 | 1039 |
| Chōkyū 1 | 1040 |
| Chōkyū 2 | 1041 |
| Chōkyū 3 | 1042 |
| Chōkyū 4 | 1043 |
| Kantoku 1 | 1044 |
| Kantoku 2 | 1045 |
| Eishō 1 | 1046 |
| Eishō 2 | 1047 |
| Eishō 3 | 1048 |
| Eishō 4 | 1049 |
| Eishō 5 | 1050 |
| Eishō 6 | 1051 |
| Eishō 7 | 1052 |
| Tenghi 1 | 1053 |
| Tenghi 2 | 1054 |
| Tenghi 3 | 1055 |
| Tenghi 4 | 1056 |
| Tenghi 5 | 1057 |
| Tenghi 6-->Kōhei 1 | 1058 |
| Kōhei 2 | 1059 |
| Kōhei 3 | 1060 |
| Kōhei 4 | 1061 |
| Kōhei 5 | 1062 |
| Kōhei 6 | 1063 |
| Kōhei 7 | 1064 |
| Jiryaku 1 | 1065 |
| Jiryaku 2 | 1066 |
| Jiryaku 3 | 1067 |
| Jiryaku 4 | 1068 |
| Enkyū 1 | 1069 |
| Enkyū 2 | 1070 |
| Enkyū 3 | 1071 |
| Enkyū 4 | 1072 |
| Enkyū 5 | 1073 |
| Jōhō 1 | 1074 |
| Jōhō 2 | 1075 |
| Jōhō 3 | 1076 |
| Shōryaku (or Jōryaku) 1 | 1077 |
| Shōryaku (or Jōryaku) 2 | 1078 |
| Shōryaku (or Jōryaku) 3 | 1079 |
| Shōryaku (or Jōryaku) 4 | 1080 |
| Eihō 1 | 1081 |
| Eihō 2 | 1082 |
| Eihō 3 | 1083 |
| Ōtoku 1 | 1084 |
| Ōtoku 2 | 1085 |
| Ōtoku 3 | 1086 |
| Kanji 1 | 1087 |
| Kanji 2 | 1088 |
| Kanji 3 | 1089 |
| Kanji 4 | 1090 |
| Kanji 5 | 1091 |
| Kanji 6 | 1092 |
| Kanji 7 | 1093 |
| Kahō 1 | 1094 |
| Kahō 2 | 1095 |
| Eichō 1-->Jōtoku 1 | 1096 |
| Jōtoku 2 | 1097 |
| Jōtoku 3 | 1098 |
| Kōwa 1 | 1099 |
| Kōwa 2 | 1100 |
| Kōwa 3 | 1101 |
| Kōwa 4 | 1102 |
| Kōwa 5 | 1103 |
| Chōji 1 | 1104 |
| Chōji 2 | 1105 |
| Kajō 1 | 1106 |
| Kajō 2 | 1107 |
| Tennin 1 | 1108 |
| Tennin 2 | 1109 |
| Ten'ei 1 | 1110 |
| Ten'ei 2 | 1111 |
| Ten'ei 3 | 1112 |
| Eikyū 1 | 1113 |
| Eikyū 2 | 1114 |
| Eikyū 3 | 1115 |
| Eikyū 4 | 1116 |
| Eikyū 5 | 1117 |
| Ghen'ei 1 | 1118 |
| Ghen'ei 2 | 1119 |
| Hōan (or Hoan) 1 | 1120 |
| Hōan (or Hoan) 2 | 1121 |
| Hōan (or Hoan) 3 | 1122 |
| Hōan (or Hoan) 4 | 1123 |
| Tenji 1 | 1124 |
| Tenji 2 | 1125 |
| Daiji 1 | 1126 |
| Daiji 2 | 1127 |
| Daiji 3 | 1128 |
| Daiji 4 | 1129 |
| Daiji 5 | 1130 |
| Tenshō 1 | 1131 |
| Chōshō 1 | 1132 |
| Chōshō 2 | 1133 |
| Chōshō 3 | 1134 |
| Hōen 1 | 1135 |
| Hōen 2 | 1136 |
| Hōen 3 | 1137 |
| Hōen 4 | 1138 |
| Hōen 5 | 1139 |
| Hōen 6 | 1140 |
| Eiji 1 | 1141 |
| Kōji 1 | 1142 |
| Kōji 2 | 1143 |
| Ten'yō 1 | 1144 |
| Kyūan 1 | 1145 |
| Kyūan 2 | 1146 |
| Kyūan 3 | 1147 |
| Kyūan 4 | 1148 |
| Kyūan 5 | 1149 |
| Kyūan 6 | 1150 |
| Ninpei 1 | 1151 |
| Ninpei 2 | 1152 |
| Ninpei 3 | 1153 |
| Kyūju 1 | 1154 |
| Kyūju 2 | 1155 |
| Hōghen 1 | 1156 |
| Hōghen 2 | 1157 |
| Hōghen 3 | 1158 |
| Ōhō 1 | 1161 |
| Ōhō 2 | 1162 |
| Chōkan 1 | 1163 |
| Chōkan 2 | 1164 |
| Ninnan 1 | 1166 |
| Ninnan 2 | 1167 |
| Ninnan 3 | 1168 |
| Kaō 1 | 1169 |
| Kaō 2 | 1170 |
| Shōan 1 | 1171 |
| Shōan 2 | 1172 |
| Shōan 3 | 1173 |
| Shōan 4 | 1174 |
| Anghen 1 | 1175 |
| Anghen 2 | 1176 |
| Jishō 1 | 1177 |
| Jishō 2 | 1178 |
| Jishō 3 | 1179 |
| Jishō 4 | 1180 |
| Yōwa 1 | 1181 |
| Juei 1 | 1182 |
| Juei 2 | 1183 |
| Genryaku 1 | 1184 |
| Bunji 1 | 1185 |
| Bunji 2 | 1186 |
| Bunji 3 | 1187 |
| Bunji 4 | 1188 |
| Bunji 5 | 1189 |
| Kenkyū 1 | 1190 |
| Kenkyū 2 | 1191 |
| Kenkyū 3 | 1192 |
| Kenkyū 4 | 1193 |
| Kenkyū 5 | 1194 |
| Kenkyū 6 | 1195 |
| Kenkyū 7 | 1196 |
| Kenkyū 8 | 1197 |
| Kenkyū 9 | 1198 |
| Shōji 1 | 1199 |
| Shōji 2 | 1200 |
| Kennin 1 | 1201 |
| Kennin 2 | 1202 |
| Kennin 3 | 1203 |
| Ghenkyū 1 | 1204 |
| Ghenkyū 2 | 1205 |
| Ken'ei 1 | 1206 |
| Jōghen 1 | 1207 |
| Jōghen 2 | 1208 |
| Jōghen 3 | 1209 |
| Jōghen 4 | 1210 |
| Kenryaku 1 | 1211 |
| Kenryaku 2 | 1212 |
| Kenpō 1 | 1213 |
| Kenpō 2 | 1214 |
| Kenpō 3 | 1215 |
| Kenpō 4 | 1216 |
| Kenpō 5 | 1217 |
| Kenpō 6 | 1218 |
| Jōkyū 1 | 1219 |
| Jōkyū 2 | 1220 |
| Jōkyū 3 | 1221 |
| Jōō 1 | 1222 |
| Jōō 2 | 1223 |
| Ghennin 1 | 1224 |
| Karoku 1 | 1225 |
| Karoku 2 | 1226 |
| Antei 1 | 1227 |
| Antei 2 | 1228 |
| Kank i1 | 1229 |
| Kanki 2 | 1230 |
| Kanki 3 | 1231 |
| Jōei 1 | 1232 |
| Tempuku 1 | 1233 |
| Bunryaku 1 | 1234 |
| Katei 1 | 1235 |
| Katei 2 | 1236 |
| Katei 3 | 1237 |
| Ryakunin 1 | 1238 |
| En'ō 1 | 1239 |
| Ninji 1 | 1240 |
| Ninji 2 | 1241 |
| Ninji 3 | 1242 |
| Kanghen 1 | 1243 |
| Kanghen 2 | 1244 |
| Kanghen 3 | 1245 |
| Kanghen 4 | 1246 |
| Hōji 1 | 1247 |
| Hōji 2 | 1248 |
| KEnchō 1 | 1249 |
| Kenchō 2 | 1250 |
| Kenchō 3 | 1251 |
| Kenchō 4 | 1252 |
| Kenchō 5 | 1253 |
| Kenchō 6 | 1254 |
| Kenchō 7 | 1255 |
| Kōghen 1 | 1256 |
| Shōka 1 | 1257 |
| Shōka 2 | 1258 |
| Shōghen 1 | 1259 |
| Bun'ō 1 | 1260 |
| Kōchō 1 | 1261 |
| Kōchō 2 | 1262 |
| Kōchō 3 | 1263 |
| Bun'ei 1 | 1264 |
| Bun'ei 2 | 1265 |
| Bun'ei 3 | 1266 |
| Bun'ei 4 | 1267 |
| Bun'ei 5 | 1268 |
| Bun'ei 6 | 1269 |
| Bun'ei 7 | 1270 |
| Bun'ei 8 | 1271 |
| Bun'ei 9 | 1272 |
| Bun'ei 10 | 1273 |
| Bun'ei 11 | 1274 |
| Kenji 1 | 1275 |
| Kenji 2 | 1276 |
| Kenji 3 | 1277 |
| Kōan 1 | 1278 |
| Kōan 2 | 1279 |
| Kōan 3 | 1280 |
| Kōan 4 | 1281 |
| Kōan 5 | 1282 |
| Kōan 6 | 1283 |
| Kōan 7 | 1284 |
| Kōan 8 | 1285 |
| Kōan 9 | 1286 |
| Kōan 10 | 1287 |
| Shōō 1 | 1288 |
| Shōō 2 | 1289 |
| Shōō 3 | 1290 |
| Shōō 4 | 1291 |
| Shōō 5 | 1292 |
| Einin 1 | 1293 |
| Einin 2 | 1294 |
| Einin 3 | 1295 |
| Einin 4 | 1296 |
| Einin 5 | 1297 |
| Einin 6 | 1298 |
| Shōan 1 | 1299 |
| Shōan 2 | 1300 |
| Shōan 3 | 1301 |
| Kanghen 1 | 1302 |
| Kaghen 1 | 1303 |
| Kaghen 2 | 1304 |
| Kaghen 3 | 1305 |
| Tokuji 1 | 1306 |
| Tokuji 2 | 1307 |
| Enkyō 1 | 1308 |
| Enkyō 2 | 1309 |
| Enkyō 3 | 1310 |
| Ōchō 1 | 1311 |
| Shōwa 1 | 1312 |
| Shōwa 2 | 1313 |
| Shōwa 3 | 1314 |
| Shōwa 4 | 1315 |
| Shōwa 5 | 1316 |
| Bunpō 1 | 1317 |
| Bunpō 2 | 1318 |
| Ghen'ō 1 | 1319 |
| Ghen'ō 2 | 1320 |
| Ghenkō (or Ghenkyō) 1 | 1321 |
| Ghenkō (or Ghenkyō) 2 | 1322 |
| Ghenkō (or Ghenkyō) 3 | 1323 |
| Shōchū 1 | 1324 |
| Shōchū 2 | 1325 |
| Karyaku 1 | 1326 |
| Karyaku 2 | 1327 |
| Karyaku 3 | 1328 |
| Ghentoku 1 | 1329 |
| Ghentoku 2 | 1330 |
| South Imperial Court |
| Ghenkō 1 | 1331 |
| Kemmu 1 | 1334 |
| Kemmu 2 | 1335 |
| Eighen 1 | 1336 |
| Eighen 2 | 1337 |
| Eighen 3 | 1338 |
| Eighen 4 | 1339 |
| Kōkoku 1 | 1340 |
| Kōkoku 2 | 1341 |
| Kōkoku 3 | 1342 |
| Kōkoku 4 | 1343 |
| Kōkoku 5 | 1344 |
| Kōkoku 6 | 1345 |
| Shōhei 1 | 1346 |
| Shōhei 2 | 1347 |
| Shōhei 3 | 1348 |
| Shōhei 4 | 1349 |
| Shōhei 5 | 1350 |
| Shōhei 6 | 1351 |
| Shōhei 7 | 1352 |
| Shōhei 8 | 1353 |
| Shōhei 9 | 1354 |
| Shōhei 10 | 1355 |
| Shōhei 11 | 1356 |
| Shōhei 12 | 1357 |
| Shōhei 13 | 1358 |
| Shōhei 14 | 1359 |
| Shōhei 15 | 1360 |
| Shōhei 16 | 1361 |
| Shōhei 17 | 1362 |
| Shōhei 18 | 1363 |
| Shōhei 19 | 1364 |
| Shōhei 20 | 1365 |
| Shōhei 21 | 1366 |
| Shōhei 22 | 1367 |
| Shōhei 23 | 1368 |
| Shōhei 24 | 1369 |
| Kentoku 1 | 1370 |
| Kentoku 2 | 1371 |
| Bunchū 1 | 1372 |
| Bunchū 2 | 1373 |
| Bunchū 3 | 1374 |
| Tenju 1 | 1375 |
| Tenju 2 | 1376 |
| Tenju 3 | 1377 |
| Tenju 4 | 1378 |
| Tenju 5 | 1379 |
| Tenju 6 | 1380 |
| Kōwa 1 | 1381 |
| Kōwa 2 | 1382 |
| Kōwa 3 | 1383 |
| Ghenchū 1 | 1384 |
| Ghenchū 2 | 1385 |
| Ghenchū 3 | 1386 |
| Ghenchū 4 | 1387 |
| Ghenchū 5 | 1388 |
| Ghenchū 6 | 1389 |
| Ghenchū 7 | 1390 |
| Ghenchū 8 | 1391 |
| Ghenchū 9 | 1392 |
| North Imperial Court |
| Shōkei 1 | 1332 |
| Shōkei 2 | 1333 |
| （Kemmu） | 1334 |
| （Kemmu） | 1335 |
| （Kemmu） | 1336 |
| （Kemmu） | 1337 |
| （Kemmu）-->Ryakuō (or Rekiō) 1 | 1338 |
| Ryakuō (or Rekiō) 2 | 1339 |
| Ryakuō (or Rekiō) 3 | 1340 |
| Ryakuō (or Rekiō) 4 | 1341 |
| Kōei 1 | 1342 |
| Kōei 2 | 1343 |
| Kōei 3 | 1344 |
| Jōwa 1 | 1345 |
| Jōwa 2 | 1346 |
| Jōwa 3 | 1347 |
| Jōwa 4 | 1348 |
| Jōwa 5 | 1349 |
| Kan'ō 1 | 1350 |
| Kan'ō 2 | 1351 |
| Bunna 1 | 1352 |
| Bunna 2 | 1353 |
| Bunna 3 | 1354 |
| Bunna 4 | 1355 |
| Enbun 1 | 1356 |
| Enbun 2 | 1357 |
| Enbun 3 | 1358 |
| Enbun 4 | 1359 |
| Enbun 5 | 1360 |
| Kōan 1 | 1361 |
| Jōji 1 | 1362 |
| Jōji 2 | 1363 |
| Jōji 3 | 1364 |
| Jōji 4 | 1365 |
| Jōji 5 | 1366 |
| Jōji 6 | 1367 |
| Ōan 1 | 1368 |
| Ōan 2 | 1369 |
| Ōan 3 | 1370 |
| Ōan 4 | 1371 |
| Ōan 5 | 1372 |
| Ōan 6 | 1373 |
| Ōan 7 | 1374 |
| Eiwa 1 | 1375 |
| Eiwa 2 | 1376 |
| Eiwa 3 | 1377 |
| Eiwa 4 | 1378 |
| Kōryaku 1 | 1379 |
| Kōryaku2 | 1380 |
| Eitoku 1 | 1381 |
| Eitoku 2 | 1382 |
| Eitoku 3 | 1383 |
| Shitoku 1 | 1384 |
| Shitoku 2 | 1385 |
| Shitoku 3 | 1386 |
| Kakei 1 | 1387 |
| Kakei 2 | 1388 |
| Kōō 1 | 1389 |
| Meitoku 1 | 1390 |
| Meitoku 2 | 1391 |
| Meitoku 3 | 1392 |
North & South courts are united
-->Meitoku |
| Ōei 1 | 1394 |
| Ōei 2 | 1395 |
| Ōei 3 | 1396 |
| Ōei 4 | 1397 |
| Ōei 5 | 1398 |
| Ōei 6 | 1399 |
| Ōei 7 | 1400 |
| Ōei 8 | 1401 |
| Ōei 9 | 1402 |
| Ōei 10 | 1403 |
| Ōei 11 | 1404 |
| Ōei 12 | 1405 |
| Ōei 13 | 1406 |
| Ōei 14 | 1407 |
| Ōei 15 | 1408 |
| Ōei 16 | 1409 |
| Ōei 17 | 1410 |
| Ōei 18 | 1411 |
| Ōei 19 | 1412 |
| Ōei 20 | 1413 |
| Ōei 21 | 1414 |
| Ōei 22 | 1415 |
| Ōei 23 | 1416 |
| Ōei 24 | 1417 |
| Ōei 25 | 1418 |
| Ōei 26 | 1419 |
| Ōei 27 | 1420 |
| Ōei 28 | 1421 |
| Ōei 29 | 1422 |
| Ōei 30 | 1423 |
| Ōei 31 | 1424 |
| Ōei 32 | 1425 |
| Ōei 33 | 1426 |
| Ōei 34 | 1427 |
| Shōchō 1 | 1428 |
| Eikyō 1 | 1429 |
| Eikyō 2 | 1430 |
| Eikyō 3 | 1431 |
| Eikyō 4 | 1432 |
| Eikyō 5 | 1433 |
| Eikyō 6 | 1434 |
| Eikyō 7 | 1435 |
| Eikyō 8 | 1436 |
| Eikyō 9 | 1437 |
| Eikyō 10 | 1438 |
| Eikyō 11 | 1439 |
| Eikyō 12 | 1440 |
| Kakitsu 1 | 1441 |
| Kakitsu 2 | 1442 |
| Kakitsu 3 | 1443 |
| Bun'an 1 | 1444 |
| Bun'an 2 | 1445 |
| Bun'an 3 | 1446 |
| Bun'an 4 | 1447 |
| Bun'an 5 | 1448 |
| Hōtoku 1 | 1449 |
| Hōtoku 2 | 1450 |
| Hōtoku 3 | 1451 |
| Kyōtoku 1 | 1452 |
| Kyōtoku 2 | 1453 |
| Kyōtoku 3 | 1454 |
| Kōshō 1 | 1455 |
| Kōshō 2 | 1456 |
| Chōroku 1 | 1457 |
| Chōroku 2 | 1458 |
| Chōroku 3 | 1459 |
| Kanshō 1 | 1460 |
| Kanshō 2 | 1461 |
| Kanshō 3 | 1462 |
| Kanshō 4 | 1463 |
| Kanshō 5 | 1464 |
| Kanshō 6 | 1465 |
| Bunshō 1 | 1466 |
| Ōnin 1 | 1467 |
| Ōnin 2 | 1468 |
| Bummei 1 | 1469 |
| Bummei 2 | 1470 |
| Bummei 3 | 1471 |
| Bummei 4 | 1472 |
| Bummei 5 | 1473 |
| Bummei 6 | 1474 |
| Bummei 7 | 1475 |
| Bummei 8 | 1476 |
| Bummei 9 | 1477 |
| Bummei 10 | 1478 |
| Bummei 11 | 1479 |
| Bummei 12 | 1480 |
| Bummei 13 | 1481 |
| Bummei 14 | 1482 |
| Bummei 15 | 1483 |
| Bummei 16 | 1484 |
| Bummei 17 | 1485 |
| Bummei 18 | 1486 |
| Chōkyō 1 | 1487 |
| Chōkyō 2 | 1488 |
| Entoku 1 | 1489 |
| Entoku 2 | 1490 |
| Entoku 3 | 1491 |
| Meiō 1 | 1492 |
| Meiō 2 | 1493 |
| Meiō 3 | 1494 |
| Meiō 4 | 1495 |
| Meiō 5 | 1496 |
| Meiō 6 | 1497 |
| Meiō 7 | 1498 |
| Meiō 8 | 1499 |
| Meiō 9 | 1500 |
| Bunki 1 | 1501 |
| Bunki 2 | 1502 |
| Bunki 3 | 1503 |
| Eishō 1 | 1504 |
| Eishō 2 | 1505 |
| Eishō 3 | 1506 |
| Eishō 4 | 1507 |
| Eishō 5 | 1508 |
| Eishō 6 | 1509 |
| Eishō 7 | 1510 |
| Eishō 8 | 1511 |
| Eishō 9 | 1512 |
| Eishō 10 | 1513 |
| Eishō 11 | 1514 |
| Eishō 12 | 1515 |
| Eishō 13 | 1516 |
| Eishō 14 | 1517 |
| Eishō 15 | 1518 |
| Eishō 16 | 1519 |
| Eishō 17 | 1520 |
| Daiei 1 | 1521 |
| Daiei 2 | 1522 |
| Daiei 3 | 1523 |
| Daiei 4 | 1524 |
| Daiei 5 | 1525 |
| Daiei 6 | 1526 |
| Daiei 7 | 1527 |
| Kyōroku 1 | 1528 |
| Kyōroku 2 | 1529 |
| Kyōroku 3 | 1530 |
| Kyōroku 4 | 1531 |
| Tembun 1 | 1532 |
| Tembun 2 | 1533 |
| Tembun 3 | 1534 |
| Tembun 4 | 1535 |
| Tembun 5 | 1536 |
| Tembun 6 | 1537 |
| Tembun 7 | 1538 |
| Tembun 8 | 1539 |
| Tembun 9 | 1540 |
| Tembun 10 | 1541 |
| Tembun 11 | 1542 |
| Tembun 12 | 1543 |
| Tembun 13 | 1544 |
| Tembun 14 | 1545 |
| Tembun 15 | 1546 |
| Tembun 16 | 1547 |
| Tembun 17 | 1548 |
| Tembun 18 | 1549 |
| Tembun 19 | 1550 |
| Tembun 20 | 1551 |
| Tembun 21 | 1552 |
| Tembun 22 | 1553 |
| Tembun 23 | 1554 |
| Kōji 1 | 1555 |
| Kōji 2 | 1556 |
| Kōji 3 | 1557 |
| Eiroku 1 | 1558 |
| Eiroku 2 | 1559 |
| Eiroku 3 | 1560 |
| Eiroku 4 | 1561 |
| Eiroku 5 | 1562 |
| Eiroku 6 | 1563 |
| Eiroku 7 | 1564 |
| Eiroku 8 | 1565 |
| Eiroku 9 | 1566 |
| Eiroku 10 | 1567 |
| Eiroku 11 | 1568 |
| Eiroku 12 | 1569 |
| Ghenki 1 | 1570 |
| Ghenki 2 | 1571 |
| Ghenki 3 | 1572 |
| Tenshō 1 | 1573 |
| Tenshō 2 | 1574 |
| Tenshō 3 | 1575 |
| Tenshō 4 | 1576 |
| Tenshō 5 | 1577 |
| Tenshō 6 | 1578 |
| Tenshō 7 | 1579 |
| Tenshō 8 | 1580 |
| Tenshō 9 | 1581 |
| Tenshō 10 | 1582 |
| Tenshō 11 | 1583 |
| Tenshō 12 | 1584 |
| Tenshō 13 | 1585 |
| Tenshō 14 | 1586 |
| Tenshō 15 | 1587 |
| Tenshō 16 | 1588 |
| Tenshō 17 | 1589 |
| Tenshō 18 | 1590 |
| Tenshō 19 | 1591 |
| Bunroku 1 | 1592 |
| Bunroku 2 | 1593 |
| Bunroku 3 | 1594 |
| Bunroku 4 | 1595 |
| Keichō 1 | 1596 |
| Keichō 2 | 1597 |
| Keichō 3 | 1598 |
| Keichō 4 | 1599 |
| Keichō 5 | 1600 |
| Keichō 6 | 1601 |
| Keichō 7 | 1602 |
| Keichō 8 | 1603 |
| Keichō 9 | 1604 |
| Keichō 10 | 1605 |
| Keichō 11 | 1606 |
| Keichō 12 | 1607 |
| Keichō 13 | 1608 |
| Keichō 14 | 1609 |
| Keichō 15 | 1610 |
| Keichō 16 | 1611 |
| Keichō 17 | 1612 |
| Keichō 18 | 1613 |
| Keichō 19 | 1614 |
| Ghenna 1 | 1615 |
| Ghenna 2 | 1616 |
| Ghenna 3 | 1617 |
| Ghenna 4 | 1618 |
| Ghenna 5 | 1619 |
| Ghenna 6 | 1620 |
| Ghenna 7 | 1621 |
| Ghenna 8 | 1622 |
| Ghenna 9 | 1623 |
| Kan'ei 1 | 1624 |
| Kan'ei 2 | 1625 |
| Kan'ei 3 | 1626 |
| Kan'ei 4 | 1627 |
| Kan'ei 5 | 1628 |
| Kan'ei 6 | 1629 |
| Kan'ei 7 | 1630 |
| Kan'ei 8 | 1631 |
| Kan'ei 9 | 1632 |
| Kan'ei 10 | 1633 |
| Kan'ei 11 | 1634 |
| Kan'ei 12 | 1635 |
| Kan'ei 13 | 1636 |
| Kan'ei 14 | 1637 |
| Kan'ei 15 | 1638 |
| Kan'ei 16 | 1639 |
| Kan'ei 17 | 1640 |
| Kan'ei 18 | 1641 |
| Kan'ei 19 | 1642 |
| Kan'ei 20 | 1643 |
| Shōhō 1 | 1644 |
| Shōhō 2 | 1645 |
| Shōhō 3 | 1646 |
| Shōhō 4 | 1647 |
| Keian 1 | 1648 |
| Keian 2 | 1649 |
| Keian 3 | 1650 |
| Keian 4 | 1651 |
| Jōō 1 | 1652 |
| Jōō 2 | 1653 |
| Jōō 3 | 1654 |
| Meireki 1 | 1655 |
| Meireki 2 | 1656 |
| Meireki 3 | 1657 |
| Manji 1 | 1658 |
| Manji 2 | 1659 |
| Manji 3 | 1660 |
| Kambun 1 | 1661 |
| Kambun 2 | 1662 |
| Kambun 3 | 1663 |
| Kambun 4 | 1664 |
| Kambun 5 | 1665 |
| Kambun 6 | 1666 |
| Kambun 7 | 1667 |
| Kambun 8 | 1668 |
| Kambun 9 | 1669 |
| Kambun 10 | 1670 |
| Kambun 11 | 1671 |
| Kambun 12 | 1672 |
| Empō 1 | 1673 |
| Empō 2 | 1674 |
| Empō 3 | 1675 |
| Empō 4 | 1676 |
| Empō 5 | 1677 |
| Empō 6 | 1678 |
| Empō 7 | 1679 |
| Empō 8 | 1680 |
| Tenna 1 | 1681 |
| Tenna 2 | 1682 |
| Tenna 3 | 1683 |
| Jōkyō 1 | 1684 |
| Jōkyō 2 | 1685 |
| Jōkyō 3 | 1686 |
| Jōkyō 4 | 1687 |
| Ghenroku 1 | 1688 |
| Ghenroku 2 | 1689 |
| Ghenroku 3 | 1690 |
| Ghenroku 4 | 1691 |
| Ghenroku 5 | 1692 |
| Ghenroku 6 | 1693 |
| Ghenroku 7 | 1694 |
| Ghenroku 8 | 1695 |
| Ghenroku 9 | 1696 |
| Ghenroku 10 | 1697 |
| Ghenroku 11 | 1698 |
| Ghenroku 12 | 1699 |
| Ghenroku 13 | 1700 |
| Ghenroku 14 | 1701 |
| Ghenroku 15 | 1702 |
| Ghenroku 16 | 1703 |
| Hōei 1 | 1704 |
| Hōei 2 | 1705 |
| Hōei 3 | 1706 |
| Hōei 4 | 1707 |
| Hōei 5 | 1708 |
| Hōei 6 | 1709 |
| Hōei 7 | 1710 |
| Shōtoku 1 | 1711 |
| Shōtoku 2 | 1712 |
| Shōtoku 3 | 1713 |
| Shōtoku 4 | 1714 |
| Shōtoku 5 | 1715 |
| Kyōhō 1 | 1716 |
| Kyōhō 2 | 1717 |
| Kyōhō 3 | 1718 |
| Kyōhō 4 | 1719 |
| Kyōhō 5 | 1720 |
| Kyōhō 6 | 1721 |
| Kyōhō 7 | 1722 |
| Kyōhō 8 | 1723 |
| Kyōhō 9 | 1724 |
| Kyōhō 10 | 1725 |
| Kyōhō 11 | 1726 |
| Kyōhō 12 | 1727 |
| Kyōhō 13 | 1728 |
| Kyōhō 14 | 1729 |
| Kyōhō 15 | 1730 |
| Kyōhō 16 | 1731 |
| Kyōhō 17 | 1732 |
| Kyōhō 18 | 1733 |
| Kyōhō 19 | 1734 |
| Kyōhō 20 | 1735 |
| Ghembun 1 | 1736 |
| Ghembun 2 | 1737 |
| Ghembun 3 | 1738 |
| Ghembun 4 | 1739 |
| Ghembun 5 | 1740 |
| Kampō 1 | 1741 |
| Kampō 2 | 1742 |
| Kampō 3 | 1743 |
| Enkyō 1 | 1744 |
| Enkyō 2 | 1745 |
| Enkyō 3 | 1746 |
| Enkyō 4 | 1747 |
| Kan'en 1 | 1748 |
| Kan'en 2 | 1749 |
| Kan'en 3 | 1750 |
| Hōreki (or Hōryaku) 1 | 1751 |
| Hōreki (or Hōryaku) 2 | 1752 |
| Hōreki (or Hōryaku) 3 | 1753 |
| Hōreki (or Hōryaku) 4 | 1754 |
| Hōreki (or Hōryaku) 5 | 1755 |
| Hōreki (or Hōryaku) 6 | 1756 |
| Hōreki (or Hōryaku) 7 | 1757 |
| Hōreki (or Hōryaku) 8 | 1758 |
| Hōreki (or Hōryaku) 9 | 1759 |
| Hōreki (or Hōryaku) 10 | 1760 |
| Hōreki (or Hōryaku) 11 | 1761 |
| Hōreki (or Hōryaku) 12 | 1762 |
| Hōreki (or Hōryaku) 13 | 1763 |
| Meiwa 1 | 1764 |
| Meiwa 2 | 1765 |
| Meiwa 3 | 1766 |
| Meiwa 4 | 1767 |
| Meiwa 5 | 1768 |
| Meiwa 6 | 1769 |
| Meiwa 7 | 1770 |
| Meiwa 8 | 1771 |
| An'ei 1 | 1772 |
| An'ei 2 | 1773 |
| An'ei 3 | 1774 |
| An'ei 4 | 1775 |
| An'ei 5 | 1776 |
| An'ei 6 | 1777 |
| An'ei 7 | 1778 |
| An'ei 8 | 1779 |
| An'ei 9 | 1780 |
| Temmei 1 | 1781 |
| Temmei 2 | 1782 |
| Temmei 3 | 1783 |
| Temmei 4 | 1784 |
| Temmei 5 | 1785 |
| Temmei 6 | 1786 |
| Temmei 7 | 1787 |
| Temmei 8 | 1788 |
| Kansei 1 | 1789 |
| Kansei 2 | 1790 |
| Kansei 3 | 1791 |
| Kansei 4 | 1792 |
| Kansei 5 | 1793 |
| Kansei 6 | 1794 |
| Kansei 7 | 1795 |
| Kansei 8 | 1796 |
| Kansei 9 | 1797 |
| Kansei 10 | 1798 |
| Kansei 11 | 1799 |
| Kansei 12 | 1800 |
| Kyōwa 1 | 1801 |
| Kyōwa 2 | 1802 |
| Kyōwa 3 | 1803 |
| Bunka 1 | 1804 |
| Bunka 2 | 1805 |
| Bunka 3 | 1806 |
| Bunka 4 | 1807 |
| Bunka 5 | 1808 |
| Bunka 6 | 1809 |
| Bunka 7 | 1810 |
| Bunka 8 | 1811 |
| Bunka 9 | 1812 |
| Bunka 10 | 1813 |
| Bunka 11 | 1814 |
| Bunka 12 | 1815 |
| Bunka 13 | 1816 |
| Bunka 14 | 1817 |
| Bunsei 1 | 1818 |
| Bunsei 2 | 1819 |
| Bunsei 3 | 1820 |
| Bunsei 4 | 1821 |
| Bunsei 5 | 1822 |
| Bunsei 6 | 1823 |
| Bunsei 7 | 1824 |
| Bunsei 8 | 1825 |
| Bunsei 9 | 1826 |
| Bunsei 10 | 1827 |
| Bunsei 11 | 1828 |
| Bunsei 12 | 1829 |
| Tempō 1 | 1830 |
| Tempō 2 | 1831 |
| Tempō 3 | 1832 |
| Tempō 4 | 1833 |
| Tempō 5 | 1834 |
| Tempō 6 | 1835 |
| Tempō 7 | 1836 |
| Tempō 8 | 1837 |
| Tempō 9 | 1838 |
| Tempō 10 | 1839 |
| Tempō 11 | 1840 |
| Tempō 12 | 1841 |
| Tempō 13 | 1842 |
| Tempō 14 | 1843 |
| Kōka 1 | 1844 |
| Kōka 2 | 1845 |
| Kōka 3 | 1846 |
| Kōka 4 | 1847 |
| Kaei 1 | 1848 |
| Kaei 2 | 1849 |
| Kaei 3 | 1850 |
| Kaei 4 | 1851 |
| Kaei 5 | 1852 |
| Kaei 6 | 1853 |
| Ansei 1 | 1854 |
| Ansei 2 | 1855 |
| Ansei 3 | 1856 |
| Ansei 4 | 1857 |
| Ansei 5 | 1858 |
| Ansei 6 | 1859 |
| Man'ei 1 | 1860 |
| Bunkyū 1 | 1861 |
| Bunkyū 2 | 1862 |
| Bunkyū 3 | 1863 |
| Ghenji 1 | 1864 |
| Keiō 1 | 1865 |
| Keiō 2 | 1866 |
| Keiō 3 | 1867 |
| Meiji 1 | 1868 |
| Meiji 2 | 1869 |
| Meiji 3 | 1870 |
| Meiji 4 | 1871 |
| Meiji 5 | 1872 |
| Meiji 6 | 1873 |
| Meiji 7 | 1874 |
| Meiji 8 | 1875 |
| Meiji 9 | 1876 |
| Meiji 10 | 1877 |
| Meiji 11 | 1878 |
| Meiji 12 | 1879 |
| Meiji 13 | 1880 |
| Meiji 14 | 1881 |
| Meiji 15 | 1882 |
| Meiji 16 | 1883 |
| Meiji 17 | 1884 |
| Meiji 18 | 1885 |
| Meiji 19 | 1886 |
| Meiji 20 | 1887 |
| Meiji 21 | 1888 |
| Meiji 22 | 1889 |
| Meiji 23 | 1890 |
| Meiji 24 | 1891 |
| Meiji 25 | 1892 |
| Meiji 26 | 1893 |
| Meiji 27 | 1894 |
| Meiji 28 | 1895 |
| Meiji 29 | 1896 |
| Meiji 30 | 1897 |
| Meiji 31 | 1898 |
| Meiji 32 | 1899 |
| Meiji 33 | 1900 |
| Meiji 34 | 1901 |
| Meiji 35 | 1902 |
| Meiji 36 | 1903 |
| Meiji 37 | 1904 |
| Meiji 38 | 1905 |
| Meiji 39 | 1906 |
| Meiji 40 | 1907 |
| Meiji 41 | 1908 |
| Meiji 42 | 1909 |
| Meiji 43 | 1910 |
| Meiji 44 | 1911 |
| Meiji 45 --> Taishō 1 | 1912 |
| Taishō 2 | 1913 |
| Taishō 3 | 1914 |
| Taishō 4 | 1915 |
| Taishō 5 | 1916 |
| Taishō 6 | 1917 |
| Taishō 7 | 1918 |
| Taishō 8 | 1919 |
| Taishō 9 | 1920 |
| Taishō 10 | 1921 |
| Taishō 11 | 1922 |
| Taishō 12 | 1923 |
| Taishō 13 | 1924 |
| Taishō 14 | 1925 |
| Taishō 15 --> Shōwa 1 | 1926 |
| Shōwa 2 | 1927 |
| Shōwa 3 | 1928 |
| Shōwa 4 | 1929 |
| Shōwa 5 | 1930 |
| Shōwa 6 | 1931 |
| Shōwa 7 | 1932 |
| Shōwa 8 | 1933 |
| Shōwa 9 | 1934 |
| Shōwa 10 | 1935 |
| Shōwa 11 | 1936 |
| Shōwa 12 | 1937 |
| Shōwa 13 | 1938 |
| Shōwa 14 | 1939 |
| Shōwa 15 | 1940 |
| Shōwa 16 | 1941 |
| Shōwa 17 | 1942 |
| Shōwa 18 | 1943 |
| Shōwa 19 | 1944 |
| Shōwa 20 | 1945 |
| Shōwa 21 | 1946 |
| Shōwa 22 | 1947 |
| Shōwa 23 | 1948 |
| Shōwa 24 | 1949 |
| Shōwa 25 | 1950 |
| Shōwa 26 | 1951 |
| Shōwa 27 | 1952 |
| Shōwa 28 | 1953 |
| Shōwa 29 | 1954 |
| Shōwa 30 | 1955 |
| Shōwa 31 | 1956 |
| Shōwa 32 | 1957 |
| Shōwa 33 | 1958 |
| Shōwa 34 | 1959 |
| Shōwa 35 | 1960 |
| Shōwa 36 | 1961 |
| Shōwa 37 | 1962 |
| Shōwa 38 | 1963 |
| Shōwa 39 | 1964 |
| Shōwa 40 | 1965 |
| Shōwa 41 | 1966 |
| Shōwa 42 | 1967 |
| Shōwa 43 | 1968 |
| Shōwa 44 | 1969 |
| Shōwa 45 | 1970 |
| Shōwa 46 | 1971 |
| Shōwa 47 | 1972 |
| Shōwa 48 | 1973 |
| Shōwa 49 | 1974 |
| Shōwa 50 | 1975 |
| Shōwa 51 | 1976 |
| Shōwa 52 | 1977 |
| Shōwa 53 | 1978 |
| Shōwa 54 | 1979 |
| Shōwa 55 | 1980 |
| Shōwa 56 | 1981 |
| Shōwa 57 | 1982 |
| Shōwa 58 | 1983 |
| Shōwa 59 | 1984 |
| Shōwa 60 | 1985 |
| Shōwa 61 | 1986 |
| Shōwa 62 | 1987 |
| Shōwa 63 | 1988 |
| Shōwa 64 --> Heisei 1 | 1989 |
| Heisei 2 | 1990 |
| Heisei 3 | 1991 |
| Heisei 4 | 1992 |
| Heisei 5 | 1993 |
| Heisei 6 | 1994 |
| Heisei 7 | 1995 |
| Heisei 8 | 1996 |
| Heisei 9 | 1997 |
| Heisei 10 | 1998 |
| Heisei 11 | 1999 |
| Heisei 12 | 2000 |
| Heisei 13 | 2001 |
| Heisei 14 | 2002 |
| Heisei 15 | 2003 |
| Heisei 16 | 2004 |
| Heisei 17 | 2005 |
| Heisei 18 | 2006 |
| Heisei 19 | 2007 |
| Heisei 20 | 2008 |
| Heisei 21 | 2009 |
| Heisei 22 | 2010 |
| Heisei 23 | 2011 |
| Heisei 24 | 2012 |
| Heisei 25 | 2013 |
| Heisei 26 | 2014 |
| Heisei 27 | 2015 |
| Heisei 28 | 2016 |
| Heisei 29 | 2017 |
| Heisei 30 | 2018 |
| Heisei 31 --> Reiwa 1 | 2019 |
