| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 11th century – 12th century – 13th century |
| Decades: | 1110s 1120s 1130s – 1140s – 1150s 1160s 1170s |
| Years: | 1139 1140 1141 – 1142 – 1143 1144 1145 |
| 1142 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Art and literature | |
| 1142 in poetry | |
| Gregorian calendar | 1142 MCXLII |
| Ab urbe condita | 1895 |
| Armenian calendar | 591 ԹՎ ՇՂԱ |
| Bahá'í calendar | -702 – -701 |
| Bengali calendar | 549 |
| Berber calendar | 2092 |
| Buddhist calendar | 1686 |
| Burmese calendar | 504 |
| Byzantine calendar | 6650 – 6651 |
| Chinese calendar | 辛酉年十二月初三日 (3778/3838-12-3) — to —
壬戌年十二月十三日(3779/3839-12-13) |
| Coptic calendar | 858 – 859 |
| Ethiopian calendar | 1134 – 1135 |
| Hebrew calendar | 4902 – 4903 |
| Hindu calendars | |
| - Bikram Samwat | 1198 – 1199 |
| - Shaka Samvat | 1064 – 1065 |
| - Kali Yuga | 4243 – 4244 |
| Holocene calendar | 11142 |
| Iranian calendar | 520 – 521 |
| Islamic calendar | 536 – 537 |
| Japanese calendar | |
| Korean calendar | 3475 |
| Thai solar calendar | 1685 |