131 BC
Calendar year
| Millennium: | 1st millennium BC |
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| 131 BC by topic |
| Politics |
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| Gregorian calendar | 131 BC CXXXI BC |
| Ab urbe condita | 623 |
| Ancient Egypt era | XXXIII dynasty, 193 |
| - Pharaoh | Ptolemy VIII Physcon, 15 |
| Ancient Greek era | 162nd Olympiad, year 2 |
| Assyrian calendar | 4620 |
| Balinese saka calendar | N/A |
| Bengali calendar | −723 |
| Berber calendar | 820 |
| Buddhist calendar | 414 |
| Burmese calendar | −768 |
| Byzantine calendar | 5378–5379 |
| Chinese calendar | 己酉年 (Earth Rooster) 2567 or 2360 — to — 庚戌年 (Metal Dog) 2568 or 2361 |
| Coptic calendar | −414 – −413 |
| Discordian calendar | 1036 |
| Ethiopian calendar | −138 – −137 |
| Hebrew calendar | 3630–3631 |
| Hindu calendars | |
| - Vikram Samvat | −74 – −73 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2970–2971 |
| Holocene calendar | 9870 |
| Iranian calendar | 752 BP – 751 BP |
| Islamic calendar | 775 BH – 774 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 2203 |
| Minguo calendar | 2042 before ROC 民前2042年 |
| Nanakshahi calendar | −1598 |
| Seleucid era | 181/182 AG |
| Thai solar calendar | 412–413 |
| Tibetan calendar | 阴土鸡年 (female Earth-Rooster) −4 or −385 or −1157 — to — 阳金狗年 (male Iron-Dog) −3 or −384 or −1156 |
Year 131 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Mucianus and Flaccus (or, less frequently, year 623 Ab urbe condita) and the Fourth Year of Yuanguang. The denomination 131 BC 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.
Events
By place
Roman Republic
- Aristonicus of Pergamon leads an uprising against Rome, and consul Publius Licinius Crassus Mucianius is killed in the fighting.
- The Roman censor Quintus Caecilius Metellus Macedonicus attempts to remove the tribune Gaius Atinius Labeo Macerio from the Senate, the angry Atinius drags him to be thrown off the Tarpeian Rock, and Metellus is only saved by the intervention of other senators.
- The tribune Gaius Papirius Carbo passes a measure allowing the use of secret ballots in legislative assemblies.
- For the first time in Roman history, both censors are plebeians (Metellus and Quintus Pompeius).
- First Acta Diurna appears in Rome around this time.
