| Millennium: | 1st Millennium BC |
|---|---|
| Centuries: | 4th cent. BC – 3rd cent. BC – 2nd cent. BC |
| Decades: | 280s BC 270s BC 260s BC – 250s BC – 240s BC 230s BC 220s BC |
| Years: | 255 BC 254 BC 253 BC – 252 BC – 251 BC 250 BC 249 BC |
| Gregorian calendar | 252 CCLII |
| Ab urbe condita | 1005 |
| Assyrian calendar | 5002 |
| Bengali calendar | −341 |
| Berber calendar | 1202 |
| Buddhist calendar | 796 |
| Burmese calendar | −386 |
| Byzantine calendar | 5760–5761 |
| Chinese calendar | 辛未年 (Metal Goat) 2948 or 2888 — to — 壬申年 (Water Monkey) 2949 or 2889 |
| Coptic calendar | −32 – −31 |
| Discordian calendar | 1418 |
| Ethiopian calendar | 244–245 |
| Hebrew calendar | 4012–4013 |
| Hindu calendars | |
| - Vikram Samvat | 308–309 |
| - Shaka Samvat | 173–174 |
| - Kali Yuga | 3352–3353 |
| Holocene calendar | 10252 |
| Iranian calendar | 370 BP – 369 BP |
| Islamic calendar | 381 BH – 380 BH |
| Javanese calendar | 130–132 |
| Julian calendar | 252 CCLII |
| Korean calendar | 2585 |
| Minguo calendar | 1660 before ROC 民前1660年 |
| Nanakshahi calendar | −1216 |
| Seleucid era | 563/564 AG |
| Thai solar calendar | 794–795 |
The year 252 BC