Sèng 81 nièng
| Gregorius Lĭk-huák | 81 BC LXXX BC |
| Ab urbe condita | 673 |
| Gū Ăi-gĭk lĭk | XXXIII dynasty, 243 |
| - huák-lō̤ | Ptolemy IX Lathyros, 8 |
| Gū Hĭ-lé-nà̤ lĭk | 174th Olympiad, year 4 |
| Assyria-lĭk | 4670 |
| Bali-lĭk | N/A |
| Mâing-gă-lăk-lĭk | −673 |
| Berber-lĭk | 870 |
| Hŭk-lĭk | 464 |
| Miēng-diêng-lĭk | −718 |
| Byzantine-lĭk | 5428–5429 |
| Nùng-lĭk | 己亥年 (Earth Pig) 2616 or 2556 — to — 庚子年 (Metal Rat) 2617 or 2557 |
| Coptic-lĭk | −364 – −363 |
| Discordia-lĭk | 1086 |
| Ethiopia-lĭk | −88 – −87 |
| Hĭ-báik-lài-lĭk | 3680–3681 |
| Éng-dô-lĭk | |
| - Vikram Samvat | −24 – −23 |
| - Éng-dô-guók-gă-lĭk | N/A |
| - Kali Yuga | 3020–3021 |
| Holocene-lĭk | 9920 |
| Iran-lĭk | 702 BP – 701 BP |
| Ĭ-sṳ̆-làng-lĭk | 724 BH – 723 BH |
| Cuā-uă-lĭk | N/A |
| Julius-lĭk | N/A |
| Hàng-guók-lĭk | 2253 |
| Mìng-guók-lĭk | 1992 before ROC 民前1992年 |
| Nanakshahi-lĭk | −1548 |
| Seleucid-lĭk | 231/232 AG |
| Tái-guók-lĭk | 462–463 |
| Să̤-câung-lĭk | 陰土豬年 (female Earth-Pig) 46 or −335 or −1107 — to — 陽金鼠年 (male Iron-Rat) 47 or −334 or −1106 |
Sèng 81 nièng găk Nùng-lĭk diē-sié sê siŏh ciáh gĕng-cṳ̄-nièng (庚子年).
