121 BC

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Millennium: 1st millennium BC
121 BC in various calendars
Gregorian calendar 121 BC
Ab urbe condita 633
Ancient Egypt era XXXIII dynasty, 203
- Pharaoh Ptolemy VIII Physcon, 25
Ancient Greek era 164th Olympiad, year 4
Assyrian calendar 4630
Balinese saka calendar N/A
Bengali calendar −713
Berber calendar 830
Buddhist calendar 424
Burmese calendar −758
Byzantine calendar 5388–5389
Chinese calendar 己未(Earth Goat)
2576 or 2516
    — to —
庚申年 (Metal Monkey)
2577 or 2517
Coptic calendar −404 – −403
Discordian calendar 1046
Ethiopian calendar −128 – −127
Hebrew calendar 3640–3641
Hindu calendars
 - Vikram Samvat −64 – −63
 - Shaka Samvat N/A
 - Kali Yuga 2980–2981
Holocene calendar 9880
Iranian calendar 742 BP – 741 BP
Islamic calendar 765 BH – 764 BH
Javanese calendar N/A
Julian calendar N/A
Korean calendar 2213
Minguo calendar 2032 before ROC
Nanakshahi calendar −1588
Seleucid era 191/192 AG
Thai solar calendar 422–423
Tibetan calendar 阴土羊年
(female Earth-Goat)
6 or −375 or −1147
    — to —
(male Iron-Monkey)
7 or −374 or −1146

Year 121 BC was a year of the pre-Julian Roman calendar, at the time it was known as the Year of the Consulship of Opimius and Allobrogicus (or, less frequently, year 633 Ab urbe condita) and the Second Year of Yuanshou. The denomination 121 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.


By place[edit]

Roman Republic[edit]

  • The Roman Senate passes the motion senatus consultum ultimum, which the consul Lucius Opimius interprets as giving him unlimited power to preserve the Republic. He gathers an armed force of Senators and their supporters to confront Gaius Gracchus. A pitched battle is fought inside Rome, resulting in the death of Gracchus and many of his followers.
  • A tribunal is established in Rome that executes 3,000 followers of Gracchus.
  • Consul Quintus Fabius Maximus, allied with the Aedui, defeated the Arverni and Allobroges in Transalpine Gaul, thus establishing the province for Rome.
  • The finest vintage of Falernian wine, known as the Opimian vintage, was bottled from vines grown on Mt Falernus between Latium and Campania.


  • Led by General Huo Qubing, the Chinese defeat the Xiongnu,killing more than 40000 Xiongnu soldiers,including seven xiongnu princes.