| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 657 BC by topic |
| Politics |
|---|
| Categories |
| Gregorian calendar | 657 BC DCLVII BC |
| Ab urbe condita | 97 |
| Ancient Egypt era | XXVI dynasty, 8 |
| - Pharaoh | Psamtik I, 8 |
| Ancient Greek era | 30th Olympiad, year 4 |
| Assyrian calendar | 4094 |
| Balinese saka calendar | N/A |
| Bengali calendar | −1249 |
| Berber calendar | 294 |
| Buddhist calendar | −112 |
| Burmese calendar | −1294 |
| Byzantine calendar | 4852–4853 |
| Chinese calendar | 癸亥年 (Water Pig) 2041 or 1834 — to — 甲子年 (Wood Rat) 2042 or 1835 |
| Coptic calendar | −940 – −939 |
| Discordian calendar | 510 |
| Ethiopian calendar | −664 – −663 |
| Hebrew calendar | 3104–3105 |
| Hindu calendars | |
| - Vikram Samvat | −600 – −599 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2444–2445 |
| Holocene calendar | 9344 |
| Iranian calendar | 1278 BP – 1277 BP |
| Islamic calendar | 1317 BH – 1316 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1677 |
| Minguo calendar | 2568 before ROC 民前2568年 |
| Nanakshahi calendar | −2124 |
| Thai solar calendar | −114 – −113 |
| Tibetan calendar | 阴水猪年 (female Water-Pig) −530 or −911 or −1683 — to — 阳木鼠年 (male Wood-Rat) −529 or −910 or −1682 |
The year 657 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 97 Ab urbe condita . The denomination 657 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.