121 BCCenturies: 3rd century BC - 2nd century BC - 1st century BC
- The 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 3000 followers of Gracchus.