| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 686 BC by topic |
| Politics |
|---|
| Categories |
| Gregorian calendar | 686 BC DCLXXXV BC |
| Ab urbe condita | 68 |
| Ancient Egypt era | XXV dynasty, 67 |
| - Pharaoh | Taharqa, 5 |
| Ancient Greek era | 23rd Olympiad, year 3 |
| Assyrian calendar | 4065 |
| Balinese saka calendar | N/A |
| Bengali calendar | −1278 |
| Berber calendar | 265 |
| Buddhist calendar | −141 |
| Burmese calendar | −1323 |
| Byzantine calendar | 4823–4824 |
| Chinese calendar | 甲午年 (Wood Horse) 2011 or 1951 — to — 乙未年 (Wood Goat) 2012 or 1952 |
| Coptic calendar | −969 – −968 |
| Discordian calendar | 481 |
| Ethiopian calendar | −693 – −692 |
| Hebrew calendar | 3075–3076 |
| Hindu calendars | |
| - Vikram Samvat | −629 – −628 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2415–2416 |
| Holocene calendar | 9315 |
| Iranian calendar | 1307 BP – 1306 BP |
| Islamic calendar | 1347 BH – 1346 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1648 |
| Minguo calendar | 2597 before ROC 民前2597年 |
| Nanakshahi calendar | −2153 |
| Thai solar calendar | −143 – −142 |
| Tibetan calendar | 阳木马年 (male Wood-Horse) −559 or −940 or −1712 — to — 阴木羊年 (female Wood-Goat) −558 or −939 or −1711 |
The year 686 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 68 Ab urbe condita . The denomination 686 BC 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.