688 BC
| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 688 BC DCLXXXVII BC |
| Ab urbe condita | 66 |
| Ancient Egypt era | XXV dynasty, 65 |
| - Pharaoh | Taharqa, 3 |
| Ancient Greek era | 23rd Olympiad (victor)¹ |
| Assyrian calendar | 4063 |
| Bengali calendar | −1280 |
| Berber calendar | 263 |
| Buddhist calendar | −143 |
| Burmese calendar | −1325 |
| Byzantine calendar | 4821–4822 |
| Chinese calendar |
壬辰年 (Water Dragon) 2009 or 1949 — to — 癸巳年 (Water Snake) 2010 or 1950 |
| Coptic calendar | −971 – −970 |
| Discordian calendar | 479 |
| Ethiopian calendar | −695 – −694 |
| Hebrew calendar | 3073–3074 |
| Hindu calendars | |
| - Vikram Samvat | −631 – −630 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2413–2414 |
| Holocene calendar | 9313 |
| Iranian calendar | 1309 BP – 1308 BP |
| Islamic calendar | 1349 BH – 1348 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1646 |
| Minguo calendar | 2599 before ROC 民前2599年 |
| Nanakshahi calendar | −2155 |
| Thai solar calendar | −145 – −144 |
...
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