| Millennium: | 1st millennium |
|---|---|
| Centuries: | 6th century – 7th century – 8th century |
| Decades: | 660s 670s 680s – 690s – 700s 710s 720s |
| Years: | 688 689 690 – 691 – 692 693 694 |
| 691 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 691 DCXCI |
| Ab urbe condita | 1444 |
| Armenian calendar | 140 ԹՎ ՃԽ |
| Bahá'í calendar | -1153 – -1152 |
| Bengali calendar | 98 |
| Berber calendar | 1641 |
| Buddhist calendar | 1235 |
| Burmese calendar | 53 |
| Byzantine calendar | 6199 – 6200 |
| Chinese calendar | 庚寅年正月廿七日 (3327/3387-1-27) — to —
辛卯年二月初七日(3328/3388-2-7) |
| Coptic calendar | 407 – 408 |
| Ethiopian calendar | 683 – 684 |
| Hebrew calendar | 4451 – 4452 |
| Hindu calendars | |
| - Bikram Samwat | 747 – 748 |
| - Shaka Samvat | 613 – 614 |
| - Kali Yuga | 3792 – 3793 |
| Holocene calendar | 10691 |
| Iranian calendar | 69 – 70 |
| Islamic calendar | 71 – 72 |
| Japanese calendar | |
| Korean calendar | 3024 |
| Thai solar calendar | 1234 |
Isabel Usher-- 6 July 691