| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 10th century – 11th century – 12th century |
| Decades: | 1040s 1050s 1060s – 1070s – 1080s 1090s 1100s |
| Years: | 1075 1076 1077 – 1078 – 1079 1080 1081 |
| 1078 by topic | |
| Lists of leaders | |
| State leaders | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 1078 MLXXVIII |
| Ab urbe condita | 1831 |
| Armenian calendar | 527 ԹՎ ՇԻԷ |
| Assyrian calendar | 5828 |
| Bahá'í calendar | -766–-765 |
| Bengali calendar | 485 |
| Berber calendar | 2028 |
| English Regnal year | 12 Will. 1 – 13 Will. 1 |
| Buddhist calendar | 1622 |
| Burmese calendar | 440 |
| Byzantine calendar | 6586–6587 |
| Chinese calendar | 丁巳年十二月十五日 (3714/3774-12-15) — to —
戊午年十一月廿五日(3715/3775-11-25) |
| Coptic calendar | 794–795 |
| Ethiopian calendar | 1070–1071 |
| Hebrew calendar | 4838–4839 |
| Hindu calendars | |
| - Vikram Samvat | 1134–1135 |
| - Shaka Samvat | 1000–1001 |
| - Kali Yuga | 4179–4180 |
| Holocene calendar | 11078 |
| Iranian calendar | 456–457 |
| Islamic calendar | 470–471 |
| Japanese calendar | |
| Korean calendar | 3411 |
| Minguo calendar | 834 before ROC 民前834年 |
| Thai solar calendar | 1621 |
Year 1078 (MLXXVIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.
The Almoravid emir, Yusuf ibn Tashfin besieges Ceuta. Since the city can receive help from the sea, the siege will last until 1083.