| Centuries: | 6th century · 7th century · 8th century |
| Decades: | 620s 630s 640s 650s 660s 670s 680s |
| Years: | 654 655 656 657 658 659 660 |
| 657 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 657 DCLVII |
| Ab urbe condita | 1410 |
| Armenian calendar | 106 ԹՎ ՃԶ |
| Bahá'í calendar | -1187 – -1186 |
| Berber calendar | 1607 |
| Buddhist calendar | 1201 |
| Burmese calendar | 19 |
| Byzantine calendar | 6165 – 6166 |
| Chinese calendar | 丙辰年十二月十一日 (3293/3353-12-11) — to —
丁巳年十一月廿一日(3294/3354-11-21) |
| Coptic calendar | 373 – 374 |
| Ethiopian calendar | 649 – 650 |
| Hebrew calendar | 4417 – 4418 |
| Hindu calendars | |
| - Vikram Samvat | 712 – 713 |
| - Shaka Samvat | 579 – 580 |
| - Kali Yuga | 3758 – 3759 |
| Holocene calendar | 10657 |
| Iranian calendar | 35 – 36 |
| Islamic calendar | 36 – 37 |
| Japanese calendar | |
| Korean calendar | 2990 |
| Thai solar calendar | 1200 |
657 was a year of the 7th century.
Events
By place
Asia
- The Chinese Tang Dynasty under Emperor Gaozong of Tang defeats a Turkish army.
- Emperor Gaozong of Tang commissions the pharmacology publication of an official materia medica, which documents 833 different substances taken from various stones, minerals, metals, plants, herbs, animals, vegetables, fruits, and cereal crops used for medicinal purposes.
By topic
Religion
- June 2—Pope Eugene I dies and is subsequently canonized.
- July 26—Battle of Siffin: Ali Ben Abu Talib fights Muawiyah over the Caliphate of Islam and captures Anbar.
- July 30—Pope Vitalian succeeds Pope Eugene I as the 76th pope.
- Saint Hilda founds an abbey on the Yorkshire coast at Whitby.
Births
Deaths
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