| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 670 BC by topic |
| Politics |
|---|
| Categories |
| Gregorian calendar | 670 BC DCLXX BC |
| Ab urbe condita | 84 |
| Ancient Egypt era | XXV dynasty, 83 |
| - Pharaoh | Taharqa, 21 |
| Ancient Greek era | 27th Olympiad, year 3 |
| Assyrian calendar | 4081 |
| Balinese saka calendar | N/A |
| Bengali calendar | −1262 |
| Berber calendar | 281 |
| Buddhist calendar | −125 |
| Burmese calendar | −1307 |
| Byzantine calendar | 4839–4840 |
| Chinese calendar | 庚戌年 (Metal Dog) 2028 or 1821 — to — 辛亥年 (Metal Pig) 2029 or 1822 |
| Coptic calendar | −953 – −952 |
| Discordian calendar | 497 |
| Ethiopian calendar | −677 – −676 |
| Hebrew calendar | 3091–3092 |
| Hindu calendars | |
| - Vikram Samvat | −613 – −612 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2431–2432 |
| Holocene calendar | 9331 |
| Iranian calendar | 1291 BP – 1290 BP |
| Islamic calendar | 1331 BH – 1330 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1664 |
| Minguo calendar | 2581 before ROC 民前2581年 |
| Nanakshahi calendar | −2137 |
| Thai solar calendar | −127 – −126 |
| Tibetan calendar | 阳金狗年 (male Iron-Dog) −543 or −924 or −1696 — to — 阴金猪年 (female Iron-Pig) −542 or −923 or −1695 |
The year 670 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 84 Ab urbe condita . The denomination 670 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.