| Millennium: | 2nd Millennium |
|---|---|
| Centuries: | 12th cent. – 13th cent. – 14th cent. |
| Decades: | 1200s 1210s 1220s – 1230s – 1240s 1250s 1260s |
| Years: | 1231 1232 1233 – 1234 – 1235 1236 1237 |
| Gregorian calendar | 1234 MCCXXXIV |
| Ab urbe condita | 1987 |
| Armenian calendar | 683 ԹՎ ՈՁԳ |
| Assyrian calendar | 5984 |
| Bengali calendar | 641 |
| Berber calendar | 2184 |
| English Regnal year | 18 Hen. 3 – 19 Hen. 3 |
| Buddhist calendar | 1778 |
| Burmese calendar | 596 |
| Byzantine calendar | 6742–6743 |
| Chinese calendar | 癸巳年 (Water Snake) 3930 or 3870 — to — 甲午年 (Wood Horse) 3931 or 3871 |
| Coptic calendar | 950–951 |
| Discordian calendar | 2400 |
| Ethiopian calendar | 1226–1227 |
| Hebrew calendar | 4994–4995 |
| Hindu calendars | |
| - Vikram Samvat | 1290–1291 |
| - Shaka Samvat | 1155–1156 |
| - Kali Yuga | 4334–4335 |
| Holocene calendar | 11234 |
| Igbo calendar | 234–235 |
| Iranian calendar | 612–613 |
| Islamic calendar | 631–632 |
| Japanese calendar | Tenpuku 2 / Bunryaku 1 (文暦元年) |
| Javanese calendar | 1143–1144 |
| Julian calendar | 1234 MCCXXXIV |
| Korean calendar | 3567 |
| Minguo calendar | 678 before ROC 民前678年 |
| Nanakshahi calendar | −234 |
| Thai solar calendar | 1776–1777 |
The year 1234 BC