107 BC

107 BC was a year of the pre-Julian Roman calendar. It is notable for the Marian reforms of the Roman army, initiated by Gaius Marius during his first consulship.

Events

• Roman Republic: Gaius Marius begins his first consulship and initiates significant military reforms, including allowing landless citizens to enlist and providing them with equipment, essentially professionalizing the Roman army. This has a profound impact on Roman politics and warfare. Marius also defeats the Cimbri and Teutones in Gaul.
• Lucius Cassius Longinus, as consul, is killed in battle against the Tigurini in Gaul.
• Jugurtha continues his war against Rome in Numidia.

Births

• Marcus Antonius Creticus, Roman politician (approximate date).
• Gnaeus Aufidius Orestes, Roman politician (approximate date).

Deaths

• Lucius Cassius Longinus, Roman consul (killed in battle).
• Lucius Calpurnius Piso Caesoninus, Roman consul (approximate date).