31 BC

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

Politics
31 BC by topic
State leaders
Categories
Births Deaths

31 BC in various calendars
Gregorian calendar	31 BC XXX BC
Ab urbe condita	723
Ancient Egypt era	XXXIII dynasty, 293
- Pharaoh	Cleopatra VII, 21
Ancient Greek era	187th Olympiad, year 2
Assyrian calendar	4720
Bengali calendar	−623
Berber calendar	920
Buddhist calendar	514
Burmese calendar	−668
Byzantine calendar	5478–5479
Chinese calendar	己丑年 (Earth Ox) 2666 or 2606 — to — 庚寅年 (Metal Tiger) 2667 or 2607
Coptic calendar	−314 – −313
Discordian calendar	1136
Ethiopian calendar	−38 – −37
Hebrew calendar	3730–3731
Hindu calendars
- Vikram Samvat	26–27
- Shaka Samvat	N/A
- Kali Yuga	3070–3071
Holocene calendar	9970
Iranian calendar	652 BP – 651 BP
Islamic calendar	672 BH – 671 BH
Javanese calendar	N/A
Julian calendar	31 BC XXX BC
Korean calendar	2303
Minguo calendar	1942 before ROC 民前1942年
Nanakshahi calendar	−1498
Seleucid era	281/282 AG
Thai solar calendar	512–513

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The Battle of Actium

Year 31 BC was either a common year starting on Tuesday, Wednesday or Thursday or a leap year starting on Tuesday or Wednesday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Tuesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Antonius and Octavianus (or, less frequently, year 723 Ab urbe condita). The denomination 31 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

By place

Roman Republic

Gaius Julius Caesar Octavian becomes Roman Consul for the third time. His partner is Marcus Valerius Messalla Corvinus, replacing Mark Antony
Octavian crosses the Strait of Otranto and lands with an army (15 legions) at Panormus in Dalmatia. He marched to Toryne in the south, and established a bridgehead at the Gulf of Ambracia.
Marcus Vipsanius Agrippa sailed with 300 war galleys to the western Peloponnese, and occupied strategic positions around the Gulf of Corinth to cut off Antony's line of communication.
Antony alerted by Octavian's presence, sets up camp on the southern shore, at the promontory of Actium. He dispatches a force to isolate the camp of Octavian in the valley of Louros.
Agrippa stormed Leucas, given Octavian an anchorage and a second depot for his land supplies. He seized the garrison at Patrae, and taking Antony's headquarters.
Amyntas, king of Galatia, deserted with 2,000 cavalry to Octavian. One-third of Antony's oarsmen is lost to malnutrition, disease and desertion.
September 2 – Roman Civil War: Battle of Actium: Off the western coast of Greece, Octavian Caesar defeats the naval forces under Mark Antony and Cleopatra VII.
The Egyptian fleet (60 warships), including Cleopatra's treasure ship retreats to Taenarus, Antony transferred his flag to a smaller vessel and breaks through Octavian's line.
Winter – Octavian (thirty-two years old) takes court at Samos. After his decisive victory at Actium he builds Nicopolis, the city is populated by Greeks from settlements further inland.

Roman Palestine

In the Judean Desert on an isolated rock plateau, fortress Masada is completed. Herod the Great builds an armory, barracks, storehouses and a palace.

By topic

Art

The Hellenistic period ends (or AD 14 by some scholars).

Births

Aristobulus IV

Deaths

References

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