9 BC
Year 9 BC was either a common year starting on Wednesday, Thursday or Friday or a leap year starting on Thursday of the Julian calendar and a leap year starting on Monday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Drusus and Crispinus. The denomination 9 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
- January 30 – The Ara Pacis, voted for by the Senate four years earlier, is dedicated.
- Pannonia is incorporated into the Roman Empire as part of Illyria.
- Nero Claudius Drusus, Emperor Augustus' stepson, begins a campaign against the Marcomanni, but dies soon after, due to a fall from his horse.
- Livy completes compilation of his Ab Urbe Condita Libri, 142 books covering the history of Rome since its foundation down to 9 BC.
- Accession of Aretas IV Philopatris as King of the Nabataeans.
Births
- Ping, Chinese emperor of the Han dynasty
- Quintus Asconius Pedianus, Roman historian
Deaths
- Nero Claudius Drusus, son of Livia and stepson of Augustus