| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | 3rd century BC – 2nd century BC – 1st century BC |
| Decades: | 160s BC 150s BC 140s BC – 130s BC – 120s BC 110s BC 100s BC |
| Years: | 141 BC 140 BC 139 BC – 138 BC – 137 BC 136 BC 135 BC |
| 138 BC by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 138 BC |
| Ab urbe condita | 616 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1981 – -1980 |
| Bengali calendar | -730 |
| Berber calendar | 813 |
| Buddhist calendar | 407 |
| Burmese calendar | -775 |
| Byzantine calendar | 5371 – 5372 |
| Chinese calendar | [[Sexagenary cycle|]]年 (2499/2559) — to —
[[Sexagenary cycle|]]年(2500/2560) |
| Coptic calendar | -421 – -420 |
| Ethiopian calendar | -145 – -144 |
| Hebrew calendar | 3623 – 3624 |
| Hindu calendars | |
| - Bikram Samwat | -81 – -80 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2964 – 2965 |
| Holocene calendar | 9863 |
| Iranian calendar | 759 BP – 758 BP |
| Islamic calendar | 782 BH – 781 BH |
| Japanese calendar | |
| Korean calendar | 2196 |
| Thai solar calendar | 406 |