| Millennium: | 1st millennium |
|---|---|
| Centuries: | 1st century – 2nd century – 3rd century |
| Decades: | 100s 110s 120s – 130s – 140s 150s 160s |
| Years: | 128 129 130 – 131 – 132 133 134 |
| 131 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 131 CXXXI |
| Ab urbe condita | 884 |
| Armenian calendar | N/A |
| Assyrian calendar | 4881 |
| Bahá'í calendar | -1713–-1712 |
| Bengali calendar | -462 |
| Berber calendar | 1081 |
| English Regnal year | N/A |
| Buddhist calendar | 675 |
| Burmese calendar | -507 |
| Byzantine calendar | 5639–5640 |
| Chinese calendar | 庚午年十一月十五日 (2767/2827-11-15) — to —
辛未年十一月廿五日(2768/2828-11-25) |
| Coptic calendar | -153–-152 |
| Ethiopian calendar | 123–124 |
| Hebrew calendar | 3891–3892 |
| Hindu calendars | |
| - Vikram Samvat | 187–188 |
| - Shaka Samvat | 53–54 |
| - Kali Yuga | 3232–3233 |
| Holocene calendar | 10131 |
| Iranian calendar | 491 BP – 490 BP |
| Islamic calendar | 506 BH – 505 BH |
| Japanese calendar | |
| Korean calendar | 2464 |
| Minguo calendar | 1781 before ROC 民前1781年 |
| Thai solar calendar | 674 |
Year 131 (CXXXI) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Laenas and Rufinus (or, less frequently, year 884 Ab urbe condita). The denomination 131 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.