1138
| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 11th century – 12th century – 13th century |
| Decades: | 1100s 1110s 1120s – 1130s – 1140s 1150s 1160s |
| Years: | 1135 1136 1137 – 1138 – 1139 1140 1141 |
| Gregorian calendar | 1138 MCXXXVIII |
| Ab urbe condita | 1891 |
| Armenian calendar | 587 ԹՎ ՇՁԷ |
| Assyrian calendar | 5888 |
| Balinese saka calendar | 1059–1060 |
| Bengali calendar | 545 |
| Berber calendar | 2088 |
| English Regnal year | 3 Ste. 1 – 4 Ste. 1 |
| Buddhist calendar | 1682 |
| Burmese calendar | 500 |
| Byzantine calendar | 6646–6647 |
| Chinese calendar | 丁巳年 (Fire Snake) 3834 or 3774 — to — 戊午年 (Earth Horse) 3835 or 3775 |
| Coptic calendar | 854–855 |
| Discordian calendar | 2304 |
| Ethiopian calendar | 1130–1131 |
| Hebrew calendar | 4898–4899 |
| Hindu calendars | |
| - Vikram Samvat | 1194–1195 |
| - Shaka Samvat | 1059–1060 |
| - Kali Yuga | 4238–4239 |
| Holocene calendar | 11138 |
| Igbo calendar | 138–139 |
| Iranian calendar | 516–517 |
| Islamic calendar | 532–533 |
| Japanese calendar | Hōen 4 (保延４年) |
| Javanese calendar | 1044–1045 |
| Julian calendar | 1138 MCXXXVIII |
| Korean calendar | 3471 |
| Minguo calendar | 774 before ROC 民前774年 |
| Nanakshahi calendar | −330 |
| Seleucid era | 1449/1450 AG |
| Thai solar calendar | 1680–1681 |
| Tibetan calendar | 阴火蛇年 (female Fire-Snake) 1264 or 883 or 111 — to — 阳土马年 (male Earth-Horse) 1265 or 884 or 112 |
1138 (MCXXXVIII) was a common year starting on Saturday of the Julian calendar, the 1138th year of the Common Era (CE) and Anno Domini (AD) designations, the 138th year of the 2nd millennium, the 38th year of the 12th century, and the 9th year of the 1130s decade. As of the start of 1138, the Gregorian calendar was 7 days ahead of the Julian calendar, which was the dominant calendar of the time.
Events
- Robert Warelwast becomes Bishop of Exeter.
- March 13 – Cardinal Gregory is elected anti-pope as Victor IV, succeeding Anacletus II.
- August 9 – Deadly earthquake in Aleppo, Syria killing about 230,000 people.
- August 22 – Battle of the Standard between David I of Scotland and the English. The Scots were defeated.
- Bavaria was taken away from the Welfen Duke Henry the Proud and given to the Austrian Margrave Leopold IV.