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| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 861 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 861 DCCCLXI |
| Ab urbe condita | 1614 |
| Armenian calendar | 310 ԹՎ ՅԺ |
| Assyrian calendar | 5611 |
| Balinese saka calendar | 782–783 |
| Bengali calendar | 268 |
| Berber calendar | 1811 |
| Buddhist calendar | 1405 |
| Burmese calendar | 223 |
| Byzantine calendar | 6369–6370 |
| Chinese calendar | 庚辰年 (Metal Dragon) 3558 or 3351 — to — 辛巳年 (Metal Snake) 3559 or 3352 |
| Coptic calendar | 577–578 |
| Discordian calendar | 2027 |
| Ethiopian calendar | 853–854 |
| Hebrew calendar | 4621–4622 |
| Hindu calendars | |
| - Vikram Samvat | 917–918 |
| - Shaka Samvat | 782–783 |
| - Kali Yuga | 3961–3962 |
| Holocene calendar | 10861 |
| Iranian calendar | 239–240 |
| Islamic calendar | 246–247 |
| Japanese calendar | Jōgan 3 (貞観３年) |
| Javanese calendar | 758–759 |
| Julian calendar | 861 DCCCLXI |
| Korean calendar | 3194 |
| Minguo calendar | 1051 before ROC 民前1051年 |
| Nanakshahi calendar | −607 |
| Seleucid era | 1172/1173 AG |
| Thai solar calendar | 1403–1404 |
| Tibetan calendar | 阳金龙年 (male Iron-Dragon) 987 or 606 or −166 — to — 阴金蛇年 (female Iron-Snake) 988 or 607 or −165 |
Year 861 (DCCCLXI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.