| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1280 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1280 in poetry |
| Gregorian calendar | 1280 MCCLXXX |
| Ab urbe condita | 2033 |
| Armenian calendar | 729 ԹՎ ՉԻԹ |
| Assyrian calendar | 6030 |
| Balinese saka calendar | 1201–1202 |
| Bengali calendar | 687 |
| Berber calendar | 2230 |
| English Regnal year | 8 Edw. 1 – 9 Edw. 1 |
| Buddhist calendar | 1824 |
| Burmese calendar | 642 |
| Byzantine calendar | 6788–6789 |
| Chinese calendar | 己卯年 (Earth Rabbit) 3977 or 3770 — to — 庚辰年 (Metal Dragon) 3978 or 3771 |
| Coptic calendar | 996–997 |
| Discordian calendar | 2446 |
| Ethiopian calendar | 1272–1273 |
| Hebrew calendar | 5040–5041 |
| Hindu calendars | |
| - Vikram Samvat | 1336–1337 |
| - Shaka Samvat | 1201–1202 |
| - Kali Yuga | 4380–4381 |
| Holocene calendar | 11280 |
| Igbo calendar | 280–281 |
| Iranian calendar | 658–659 |
| Islamic calendar | 678–679 |
| Japanese calendar | Kōan 3 (弘安３年) |
| Javanese calendar | 1190–1191 |
| Julian calendar | 1280 MCCLXXX |
| Korean calendar | 3613 |
| Minguo calendar | 632 before ROC 民前632年 |
| Nanakshahi calendar | −188 |
| Thai solar calendar | 1822–1823 |
| Tibetan calendar | 阴土兔年 (female Earth-Rabbit) 1406 or 1025 or 253 — to — 阳金龙年 (male Iron-Dragon) 1407 or 1026 or 254 |
1280 (MCCLXXX) was a leap year starting on Monday (link will display the full calendar) in the Julian calendar. It was the 1280th year of the Common Era (CE) and Anno Domini (AD) designations, the 280th year of the 2nd millennium, the 80th year of the 13th century, and the first year of the 1280s decade.