| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 11th century – 12th century – 13th century |
| Decades: | 1110s 1120s 1130s – 1140s – 1150s 1160s 1170s |
| Years: | 1142 1143 1144 – 1145 – 1146 1147 1148 |
| 1145 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Art and literature | |
| 1145 in poetry | |
| Gregorian calendar | 1145 MCXLV |
| Ab urbe condita | 1898 |
| Armenian calendar | 594 ԹՎ ՇՂԴ |
| Bahá'í calendar | -699 – -698 |
| Bengali calendar | 552 |
| Berber calendar | 2095 |
| Buddhist calendar | 1689 |
| Burmese calendar | 507 |
| Byzantine calendar | 6653 – 6654 |
| Chinese calendar | 甲子年十二月初七日 (3781/3841-12-7) — to —
乙丑年閏十一月十六日(3782/3842-intercalary 11-16) |
| Coptic calendar | 861 – 862 |
| Ethiopian calendar | 1137 – 1138 |
| Hebrew calendar | 4905 – 4906 |
| Hindu calendars | |
| - Bikram Samwat | 1201 – 1202 |
| - Shaka Samvat | 1067 – 1068 |
| - Kali Yuga | 4246 – 4247 |
| Holocene calendar | 11145 |
| Iranian calendar | 523 – 524 |
| Islamic calendar | 539 – 540 |
| Japanese calendar | |
| Korean calendar | 3478 |
| Thai solar calendar | 1688 |