| Centuries: | 4th century · 5th century · 6th century |
| Decades: | 410s 420s 430s 440s 450s 460s 470s |
| Years: | 445 446 447 448 449 450 451 |
| 448 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 448 CDXLVIII |
| Ab urbe condita | 1201 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1396 – -1395 |
| Bengali calendar | -145 |
| Berber calendar | 1398 |
| Buddhist calendar | 992 |
| Burmese calendar | -190 |
| Byzantine calendar | 5956 – 5957 |
| Chinese calendar | 丁亥年十二月初十日 (3084/3144-12-10) — to —
戊子年十一月二十日(3085/3145-11-20) |
| Coptic calendar | 164 – 165 |
| Ethiopian calendar | 440 – 441 |
| Hebrew calendar | 4208 – 4209 |
| Hindu calendars | |
| - Bikram Samwat | 504 – 505 |
| - Shaka Samvat | 370 – 371 |
| - Kali Yuga | 3549 – 3550 |
| Holocene calendar | 10448 |
| Iranian calendar | 174 BP – 173 BP |
| Islamic calendar | 179 BH – 178 BH |
| Japanese calendar | |
| Korean calendar | 2781 |
| Thai solar calendar | 991 |