| Millennium: | 1st millennium |
|---|---|
| Centuries: | 2nd century – 3rd century – 4th century |
| Decades: | 230s 240s 250s – 260s – 270s 280s 290s |
| Years: | 261 262 263 – 264 – 265 266 267 |
| 264 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 264 CCLXIV |
| Ab urbe condita | 1017 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1580 – -1579 |
| Bengali calendar | -329 |
| Berber calendar | 1214 |
| Buddhist calendar | 808 |
| Burmese calendar | -374 |
| Byzantine calendar | 5772 – 5773 |
| Chinese calendar | 癸未年十一月十五日 (2900/2960-11-15) — to —
甲申年十一月廿六日(2901/2961-11-26) |
| Coptic calendar | -20 – -19 |
| Ethiopian calendar | 256 – 257 |
| Hebrew calendar | 4024 – 4025 |
| Hindu calendars | |
| - Bikram Samwat | 320 – 321 |
| - Shaka Samvat | 186 – 187 |
| - Kali Yuga | 3365 – 3366 |
| Holocene calendar | 10264 |
| Iranian calendar | 358 BP – 357 BP |
| Islamic calendar | 369 BH – 368 BH |
| Japanese calendar | |
| Korean calendar | 2597 |
| Thai solar calendar | 807 |