| Millennium: | 1st millennium |
|---|---|
| Centuries: | 7th century – 8th century – 9th century |
| Decades: | 750s 760s 770s – 780s – 790s 800s 810s |
| Years: | 786 787 788 – 789 – 790 791 792 |
| 789 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 789 DCCLXXXIX |
| Ab urbe condita | 1542 |
| Armenian calendar | 238 ԹՎ ՄԼԸ |
| Bahá'í calendar | -1055 – -1054 |
| Bengali calendar | 196 |
| Berber calendar | 1739 |
| Buddhist calendar | 1333 |
| Burmese calendar | 151 |
| Byzantine calendar | 6297 – 6298 |
| Chinese calendar | 戊辰年十二月初一日 (3425/3485-12-1) — to —
己巳年十二月十一日(3426/3486-12-11) |
| Coptic calendar | 505 – 506 |
| Ethiopian calendar | 781 – 782 |
| Hebrew calendar | 4549 – 4550 |
| Hindu calendars | |
| - Bikram Samwat | 845 – 846 |
| - Shaka Samvat | 711 – 712 |
| - Kali Yuga | 3890 – 3891 |
| Holocene calendar | 10789 |
| Iranian calendar | 167 – 168 |
| Islamic calendar | 172 – 173 |
| Japanese calendar | |
| Korean calendar | 3122 |
| Thai solar calendar | 1332 |