| Millennium: | 1st millennium |
|---|---|
| Centuries: | 1st century BC – 1st century – 2nd century |
| Decades: | 50s 60s 70s – 80s – 90s 100s 110s |
| Years: | 77 78 79 – 80 – 81 82 83 |
| 80 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 80 LXXX |
| Ab urbe condita | 833 |
| Armenian calendar | N/A |
| Assyrian calendar | 4830 |
| Bahá'í calendar | -1764 – -1763 |
| Bengali calendar | -513 |
| Berber calendar | 1030 |
| English Regnal year | N/A |
| Buddhist calendar | 624 |
| Burmese calendar | -558 |
| Byzantine calendar | 5588 – 5589 |
| Chinese calendar | 己卯年十一月二十日 (2716/2776-11-20) — to —
庚辰年十二月初一日(2717/2777-12-1) |
| Coptic calendar | -204 – -203 |
| Ethiopian calendar | 72 – 73 |
| Hebrew calendar | 3840 – 3841 |
| Hindu calendars | |
| - Bikram Samwat | 136 – 137 |
| - Shaka Samvat | 2 – 3 |
| - Kali Yuga | 3181 – 3182 |
| Holocene calendar | 10080 |
| Iranian calendar | 542 BP – 541 BP |
| Islamic calendar | 559 BH – 558 BH |
| Japanese calendar | |
| Korean calendar | 2413 |
| Minguo calendar | 1832 before ROC 民前1832年 |
| Thai solar calendar | 623 |
| Wikimedia Commons has media related to: 80 |
Year 80 (LXXX) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Domitianus (or, less frequently, year 833 Ab urbe condita). The denomination 80 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
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