1231 Nièng
| Chiĕng-gī: | 2 chiĕng-gī |
| Sié-gī: | 12 sié-gī | 13 sié-gī | 14 sié-gī |
| Nièng-dâi: | 1200 nièng-dâi | 1210 nièng-dâi | 1220 nièng-dâi | 1230 nièng-dâi | 1240 nièng-dâi | 1250 nièng-dâi | 1260 nièng-dâi |
| Nièng: | 1226 nièng | 1227 nièng | 1228 nièng | 1229 nièng | 1230 nièng | 1231 nièng | 1232 nièng | 1233 nièng | 1234 nièng | 1235 nièng | 1236 nièng |
| Găng-ciĕ | Gĕng-ìng nièng — gáu — Sĭng-māu nièng |
| Gregorius lĭk | 1231 nièng MCCXXXI |
| Julius lĭk | bī Gregorius lĭk cā 7 gĕ̤ng |
| Hŭk-lĭk | 1775 nièng |
| Dô̤-gáu-lĭk | 3928 nièng |
| Huòi-lĭk | 628~629 |
| Nĭk-buōng Huòng-gī | 1891 nièng |
| Tàng-gī | 3564 nièng |
| Hĭ-báik-lài-lĭk | 4991~4992 |
| Să̤-câung-lĭk | iòng tiék hū (lcags pho stag) — gáu — ĭng tiék tó (lcags mo yos) |
| Hindu lĭk | |
| - Vikram Samvat | 1286 – 1287 |
| - Shaka Samvat | 1153 – 1154 |
| Iran lĭk | 609 – 610 |
| Runic lĭk | 1481 |
| Assyria lĭk | 5981 nièng |
| Ethiopia lĭk | 1225~1226 |
1231 nièng găk Julius Lĭk-huák diē-sié sê siŏh ciáh bìng-nièng, tàu gĕ̤ng sê bái-săng.
Duâi dâi
Chók-sié
Guó-sié
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