31 BC

Year 31 BC was either a common year starting on Tuesday, Wednesday or Thursday or a leap year starting on Tuesday or Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Antonius and Octavianus.

Millennium:	1st millennium BC
Centuries:	2nd century BC – 1st century BC – 1st century
Decades:	60s BC  50s BC  40s BC  – 30s BC –  20s BC  10s BC  0s BC
Years:	34 BC 33 BC 32 BC – 31 BC – 30 BC 29 BC 28 BC

Events

• Gaius Julius Caesar Octavian becomes Roman Consul for the third time. His partner is Marcus Valerius Messalla Corvinus, replacing Mark Antony.
• Octavian establishes a bridgehead at the Gulf of Ambracia
• Marcus Vipsanius Agrippa sailed with 300 war galleys to the western Peloponnese. He occupied the Gulf of Corinth to cut off Antony's line of communication.
• Antony sets up camp at the promontory of Actium.
• Agrippa stormed Leucas. He took the garrison at Patrae.
• The Egyptian fleet retreats to Taenarus.
• Octavian takes court at Samos
• In the Judean Desert Herod the Great completes the fortress Masada.
• The Hellenistic period in art ends (or AD 14 by some scholars)