| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1048 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Gregorian calendar | 1048 MXLVIII |
| Ab urbe condita | 1801 |
| Armenian calendar | 497 ԹՎ ՆՂԷ |
| Assyrian calendar | 5798 |
| Balinese saka calendar | 969–970 |
| Bengali calendar | 455 |
| Berber calendar | 1998 |
| English Regnal year | N/A |
| Buddhist calendar | 1592 |
| Burmese calendar | 410 |
| Byzantine calendar | 6556–6557 |
| Chinese calendar | 丁亥年 (Fire Pig) 3745 or 3538 — to — 戊子年 (Earth Rat) 3746 or 3539 |
| Coptic calendar | 764–765 |
| Discordian calendar | 2214 |
| Ethiopian calendar | 1040–1041 |
| Hebrew calendar | 4808–4809 |
| Hindu calendars | |
| - Vikram Samvat | 1104–1105 |
| - Shaka Samvat | 969–970 |
| - Kali Yuga | 4148–4149 |
| Holocene calendar | 11048 |
| Igbo calendar | 48–49 |
| Iranian calendar | 426–427 |
| Islamic calendar | 439–440 |
| Japanese calendar | Eishō 3 (永承３年) |
| Javanese calendar | 951–952 |
| Julian calendar | 1048 MXLVIII |
| Korean calendar | 3381 |
| Minguo calendar | 864 before ROC 民前864年 |
| Nanakshahi calendar | −420 |
| Seleucid era | 1359/1360 AG |
| Thai solar calendar | 1590–1591 |
| Tibetan calendar | 阴火猪年 (female Fire-Pig) 1174 or 793 or 21 — to — 阳土鼠年 (male Earth-Rat) 1175 or 794 or 22 |
1048 (MXLVIII) was a leap year starting on Friday of the Julian calendar, the 1048th year of the Common Era (CE) and Anno Domini (AD) designations, the 48th year of the 2nd millennium and the 11th century, and the 9th year of the 1040s decade. As of the start of 1048, the Gregorian calendar was 6 days ahead of the Julian calendar, which was the dominant calendar of the time.