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| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 254 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 254 CCLIV |
| Ab urbe condita | 1007 |
| Assyrian calendar | 5004 |
| Balinese saka calendar | 175–176 |
| Bengali calendar | −339 |
| Berber calendar | 1204 |
| Buddhist calendar | 798 |
| Burmese calendar | −384 |
| Byzantine calendar | 5762–5763 |
| Chinese calendar | 癸酉年 (Water Rooster) 2951 or 2744 — to — 甲戌年 (Wood Dog) 2952 or 2745 |
| Coptic calendar | −30 – −29 |
| Discordian calendar | 1420 |
| Ethiopian calendar | 246–247 |
| Hebrew calendar | 4014–4015 |
| Hindu calendars | |
| - Vikram Samvat | 310–311 |
| - Shaka Samvat | 175–176 |
| - Kali Yuga | 3354–3355 |
| Holocene calendar | 10254 |
| Iranian calendar | 368 BP – 367 BP |
| Islamic calendar | 379 BH – 378 BH |
| Javanese calendar | 133–134 |
| Julian calendar | 254 CCLIV |
| Korean calendar | 2587 |
| Minguo calendar | 1658 before ROC 民前1658年 |
| Nanakshahi calendar | −1214 |
| Seleucid era | 565/566 AG |
| Thai solar calendar | 796–797 |
| Tibetan calendar | 阴水鸡年 (female Water-Rooster) 380 or −1 or −773 — to — 阳木狗年 (male Wood-Dog) 381 or 0 or −772 |
Year 254 (CCLIV) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Valerianus and Gallienus (or, less frequently, year 1007 Ab urbe condita). The denomination 254 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.