1240 Nièng
| Chiĕng-gī: | 2 chiĕng-gī |
| Sié-gī: | 12 sié-gī | 13 sié-gī | 14 sié-gī |
| Nièng-dâi: | 1210 nièng-dâi | 1220 nièng-dâi | 1230 nièng-dâi | 1240 nièng-dâi | 1250 nièng-dâi | 1260 nièng-dâi | 1270 nièng-dâi |
| Nièng: | 1235 nièng | 1236 nièng | 1237 nièng | 1238 nièng | 1239 nièng | 1240 nièng | 1241 nièng | 1242 nièng | 1243 nièng | 1244 nièng | 1245 nièng |
| Găng-ciĕ | Gī-hâi nièng — gáu — Gĕng-cṳ̄ nièng |
| Gregorius lĭk | 1240 nièng MCCXL |
| Julius lĭk | bī Gregorius lĭk cā 7 gĕ̤ng |
| Hŭk-lĭk | 1784 nièng |
| Dô̤-gáu-lĭk | 3937 nièng |
| Huòi-lĭk | 637~638 |
| Nĭk-buōng Huòng-gī | 1900 nièng |
| Tàng-gī | 3573 nièng |
| Hĭ-báik-lài-lĭk | 5000~5001 |
| Să̤-câung-lĭk | ĭng tù dṳ̆ (sa mo phag) — gáu — iòng tiék chṳ̄ (lcags pho byi) |
| Hindu lĭk | |
| - Vikram Samvat | 1295 – 1296 |
| - Shaka Samvat | 1162 – 1163 |
| Iran lĭk | 618 – 619 |
| Runic lĭk | 1490 |
| Assyria lĭk | 5990 nièng |
| Ethiopia lĭk | 1234~1235 |
1240 nièng găk Julius Lĭk-huák diē-sié sê siŏh ciáh nông-nièng, tàu gĕ̤ng sê lā̤-bái.
Duâi dâi
Chók-sié
Guó-sié
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