| Years: 919 920 921 922 - 923 - 924 925 926 927 | |
| Decades: 890s 900s 910s - 920s - 930s 940s 950s | |
| Centuries: 9th century - 10th century - 11th century | |
| Gregorian calendar | 923 CMXXIII |
| Ab urbe condita | 1676 |
| Armenian calendar | 372 ԹՎ ՅՀԲ |
| Assyrian calendar | 5673 |
| Balinese saka calendar | 844–845 |
| Bengali calendar | 329–330 |
| Berber calendar | 1873 |
| Buddhist calendar | 1467 |
| Burmese calendar | 285 |
| Byzantine calendar | 6431–6432 |
| Chinese calendar | 壬午年 (Water Horse) 3620 or 3413 — to — 癸未年 (Water Goat) 3621 or 3414 |
| Coptic calendar | 639–640 |
| Discordian calendar | 2089 |
| Ethiopian calendar | 915–916 |
| Hebrew calendar | 4683–4684 |
| Hindu calendars | |
| - Vikram Samvat | 979–980 |
| - Shaka Samvat | 844–845 |
| - Kali Yuga | 4023–4024 |
| Holocene calendar | 10923 |
| Iranian calendar | 301–302 |
| Islamic calendar | 310–311 |
| Japanese calendar | Engi 23 / Enchō 1 (延長元年) |
| Javanese calendar | 822–823 |
| Julian calendar | 923 CMXXIII |
| Korean calendar | 3256 |
| Minguo calendar | 989 before ROC 民前989年 |
| Nanakshahi calendar | −545 |
| Seleucid era | 1234/1235 AG |
| Thai solar calendar | 1465–1466 |
| Tibetan calendar | ཆུ་ཕོ་རྟ་ལོ་ (male Water-Horse) 1049 or 668 or −104 — to — ཆུ་མོ་ལུག་ལོ་ (female Water-Sheep) 1050 or 669 or −103 |
Events
- June 15 - Battle of Soissons: King Robert I of France is killed, King Charles the Simple is arrested by the supporters of Duke Rudolph of Burgundy
- Topiltzin Ce Acatl Quetzalcoatl becomes ruler of the Toltecs (approx. date)
- Later Liang Dynasty falls to the Later Tang Dynasty founded by Li Cunxu in China
- Setting date of the movie Monty Python and the Holy Grail
Births
- Emperor Suzaku of Japan
Deaths
- Athelm, Archbishop of Canterbury
- Al-Tabari, physician, philosopher, mathematician, and astronomer