| Millennium: | 1st millennium |
|---|---|
| Centuries: | 2nd century – 3rd century – 4th century |
| Decades: | 220s 230s 240s – 250s – 260s 270s 280s |
| Years: | 249 250 251 – 252 – 253 254 255 |
| 252 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 252 CCLII |
| Ab urbe condita | 1005 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1592 – -1591 |
| Bengali calendar | -341 |
| Berber calendar | 1202 |
| Buddhist calendar | 796 |
| Burmese calendar | -386 |
| Byzantine calendar | 5760 – 5761 |
| Chinese calendar | 辛未年十二月初三日 (2888/2948-12-3) — to —
壬申年十一月十四日(2889/2949-11-14) |
| Coptic calendar | -32 – -31 |
| Ethiopian calendar | 244 – 245 |
| Hebrew calendar | 4012 – 4013 |
| Hindu calendars | |
| - Bikram Samwat | 308 – 309 |
| - Shaka Samvat | 174 – 175 |
| - Kali Yuga | 3353 – 3354 |
| Holocene calendar | 10252 |
| Iranian calendar | 370 BP – 369 BP |
| Islamic calendar | 381 BH – 380 BH |
| Japanese calendar | |
| Korean calendar | 2585 |
| Thai solar calendar | 795 |