| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1278 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1278 in poetry |
| Gregorian calendar | 1278 MCCLXXVIII |
| Ab urbe condita | 2031 |
| Armenian calendar | 727 ԹՎ ՉԻԷ |
| Assyrian calendar | 6028 |
| Balinese saka calendar | 1199–1200 |
| Bengali calendar | 685 |
| Berber calendar | 2228 |
| English Regnal year | 6 Edw. 1 – 7 Edw. 1 |
| Buddhist calendar | 1822 |
| Burmese calendar | 640 |
| Byzantine calendar | 6786–6787 |
| Chinese calendar | 丁丑年 (Fire Ox) 3975 or 3768 — to — 戊寅年 (Earth Tiger) 3976 or 3769 |
| Coptic calendar | 994–995 |
| Discordian calendar | 2444 |
| Ethiopian calendar | 1270–1271 |
| Hebrew calendar | 5038–5039 |
| Hindu calendars | |
| - Vikram Samvat | 1334–1335 |
| - Shaka Samvat | 1199–1200 |
| - Kali Yuga | 4378–4379 |
| Holocene calendar | 11278 |
| Igbo calendar | 278–279 |
| Iranian calendar | 656–657 |
| Islamic calendar | 676–677 |
| Japanese calendar | Kenji 4 / Kōan 1 (弘安元年) |
| Javanese calendar | 1188–1189 |
| Julian calendar | 1278 MCCLXXVIII |
| Korean calendar | 3611 |
| Minguo calendar | 634 before ROC 民前634年 |
| Nanakshahi calendar | −190 |
| Thai solar calendar | 1820–1821 |
| Tibetan calendar | 阴火牛年 (female Fire-Ox) 1404 or 1023 or 251 — to — 阳土虎年 (male Earth-Tiger) 1405 or 1024 or 252 |
Year 1278 (MCCLXXVIII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar.