| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | 4th century BC – 3rd century BC – 2nd century 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 |
| 252 BC by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 252 BC |
| Ab urbe condita | 502 |
| Armenian calendar | N/A |
| Bahá'í calendar | -2095 – -2094 |
| Bengali calendar | -844 |
| Berber calendar | 699 |
| Buddhist calendar | 293 |
| Burmese calendar | -889 |
| Byzantine calendar | 5257 – 5258 |
| Chinese calendar | [[Sexagenary cycle|]]年 (2385/2445) — to —
[[Sexagenary cycle|]]年(2386/2446) |
| Coptic calendar | -535 – -534 |
| Ethiopian calendar | -259 – -258 |
| Hebrew calendar | 3509 – 3510 |
| Hindu calendars | |
| - Bikram Samwat | -195 – -194 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2850 – 2851 |
| Holocene calendar | 9749 |
| Iranian calendar | 873 BP – 872 BP |
| Islamic calendar | 900 BH – 899 BH |
| Japanese calendar | |
| Korean calendar | 2082 |
| Thai solar calendar | 292 |