This article concerns the period 99 BC – 90 BC.
|Millennium:||1st millennium BC|
- Consuls: Quintus Caecilius Metellus Nepos and Titus Didius
- The Senate passes the Lex Caecilia Didia which bans omnibus bills.
- Consuls: Gnaeus Cornelius Lentulus and Publius Licinius Crassus.
- C. Decianus, the prosecutor of Furius, is himself condemned for his remarks about the death of Saturninus.
- The Romans subdue the Maedi and Dardani.
- L. Domitius takes harsh measures to restore order in Sicily.
- The censors, Flaccus and Antonius, remove M. Duronius from the senate because of his opposition to sumptuary laws.
- A decree of the Roman Senate bans human sacrifices.
- Sulla displays a lion hunt for the first time in games at Rome.
- Joseph, the husband of Mary the mother of Jesus, and his "earthly-father" - in distinction to God the Father, his "heavenly father" - is born. According to some accounts, Joseph was 92 years old when Jesus was born.
- Consuls: Gaius Cassius Longinus and Gnaeus Domitius Ahenobarbus
- Cyrene is left to the people of the Roman Republic by its ruler Ptolemy Apion.
- Seleucus VI Epiphanes becomes king of the Seleucid Empire following the death of his father Antiochus VIII Grypus, and defeating in battle Antiochus IX Cyzicenus.
- Start of the Taishi era in the Han Dynasty.
- Philip I Philadelphus and Antiochus XI Ephiphanes succeed as co-rulers after the deposition of Seleucus VI Epiphanes.
- "Forty metre structure" at Emain Macha (near modern Armagh, Northern Ireland) built and destroyed, presumably for ritual or ceremonial purposes.
- Consuls: Gaius Coelius Caldus and Lucius Domitius Ahenobarbus.
- The first (failed) attempt to open a Latin rhetorical school.
- Lucius Cornelius Sulla is elected praetor urbanus.
- Ariobarzanes I Philoromaios becomes king of Cappadocia with Roman backing.
- Arshak I becomes king of Caucasian Iberia after overthrowing Farnadjom.
- End of era Taishi of Emperor Wu of Han China.
- Consuls: Gaius Claudius Pulcher and Marcus Perperna.
- In the first diplomatic contact between Rome and Parthia, Sulla meets with a Parthian envoy, resulting in the parties recognizing the Euphrates as a common frontier.
- Sulla repulses Tigranes of Armenia from Cappadocia.
- Gaius Sentius becomes Roman governor of Macedonia. He serves until 88 BC.
- Consuls: Sextus Julius Caesar and Lucius Marcius Philippus.
- The tribune Marcus Livius Drusus proposes extending Roman citizenship to allied Italian cities, but is assassinated, leading to the Social War.
- Liu Ju, crown prince of the Han dynasty, revolts against his father, Emperor Wu, and his witchcraft trials. After his rebellion fails, he hangs himself.
- Records of the Grand Historian compiled by Sima Qian.
- Consuls: Lucius Julius Caesar and Publius Rutilius Lupus.
- Social War continues: Pompeius Strabo and Gaius Marius distinguish themselves.
- The Etruscans are granted Roman citizenship.
- Corfinium in south-central Italy is the center of a rebellion against Rome.
- The Lex Iulia grants citizenship to all Italians who did not oppose Rome during the Social War.
- Cicero starts to serve in the Roman army.
- Nigidius Figulus, Roman philosopher (probable date) (d. 45 BC)
- Terentia, first wife of Cicero (d. AD 4).
- Clodia, daughter of Appius Claudius Pulcher
- Marcus Porcius Cato Uticensis, Roman politician (d. 46 BC)
- Antiochus VIII Grypus, king of the Seleucid Empire
- Antiochus IX Cyzicenus, king of the Seleucid Empire
- Gongsun Ao, Chinese general of the Han Dynasty
- Ptolemy Apion, king of Cyrenaica (modern Libya)
- Liu Ju, crown prince of the Han Dynasty (b. 128 BC)
- Lucius Licinius Crassus, Roman consul (b. 140 BC)
- Marcus Livius Drusus, Roman politician
- Quintus Caecilius Metellus Numidicus, Roman politician
- Wei Zifu, empress of the Han Dynasty
- Antiochus X Eusebes, Seleucid king (approximate date)
- Dionysios Trax, Greek grammarian (b. 170 BC)
- Li Yannian, Chinese musician (executed by Wu of Han)
- Pharnajom, king of Iberia (modern Georgia)