| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 878 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 878 DCCCLXXVIII |
| Ab urbe condita | 1631 |
| Armenian calendar | 327 ԹՎ ՅԻԷ |
| Assyrian calendar | 5628 |
| Balinese saka calendar | 799–800 |
| Bengali calendar | 285 |
| Berber calendar | 1828 |
| Buddhist calendar | 1422 |
| Burmese calendar | 240 |
| Byzantine calendar | 6386–6387 |
| Chinese calendar | 丁酉年 (Fire Rooster) 3575 or 3368 — to — 戊戌年 (Earth Dog) 3576 or 3369 |
| Coptic calendar | 594–595 |
| Discordian calendar | 2044 |
| Ethiopian calendar | 870–871 |
| Hebrew calendar | 4638–4639 |
| Hindu calendars | |
| - Vikram Samvat | 934–935 |
| - Shaka Samvat | 799–800 |
| - Kali Yuga | 3978–3979 |
| Holocene calendar | 10878 |
| Iranian calendar | 256–257 |
| Islamic calendar | 264–265 |
| Japanese calendar | Gangyō 2 (元慶２年) |
| Javanese calendar | 776–777 |
| Julian calendar | 878 DCCCLXXVIII |
| Korean calendar | 3211 |
| Minguo calendar | 1034 before ROC 民前1034年 |
| Nanakshahi calendar | −590 |
| Seleucid era | 1189/1190 AG |
| Thai solar calendar | 1420–1421 |
| Tibetan calendar | 阴火鸡年 (female Fire-Rooster) 1004 or 623 or −149 — to — 阳土狗年 (male Earth-Dog) 1005 or 624 or −148 |
Year 878 (DCCCLXXVIII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.