40 BC

40 BC in other calendars
Gregorian calendar	40 BC; XXXIX BC
Ab urbe condita	714
Ancient Egypt era	XXXIII dynasty, 284
- Pharaoh	Cleopatra VII, 12
Ancient Greek era	185th Olympiad (victor)¹
Assyrian calendar	4711
Balinese saka calendar	N/A
Bengali calendar	−632
Berber calendar	911
Buddhist calendar	505
Burmese calendar	−677
Byzantine calendar	5469–5470
Chinese calendar	庚辰年 (Metal Dragon); 2657 or 2597; — to —; 辛巳年 (Metal Snake); 2658 or 2598
Coptic calendar	−323 – −322
Discordian calendar	1127
Ethiopian calendar	−47 – −46
Hebrew calendar	3721–3722
Hindu calendars
- Vikram Samvat	17–18
- Shaka Samvat	N/A
- Kali Yuga	3061–3062
Holocene calendar	9961
Iranian calendar	661 BP – 660 BP
Islamic calendar	681 BH – 680 BH
Javanese calendar	N/A
Julian calendar	40 BC; XXXIX BC
Korean calendar	2294
Minguo calendar	1951 before ROC; 民前1951年
Nanakshahi calendar	−1507
Seleucid era	272/273 AG
Thai solar calendar	503–504
Tibetan calendar	阳金龙年; (male Iron-Dragon); 87 or −294 or −1066; — to —; 阴金蛇年; (female Iron-Snake); 88 or −293 or −1065

Millennium:	1st millennium BC
Centuries:	2nd century BC – 1st century BC – 1st century
Decades:	70s BC 60s BC 50s BC – 40s BC – 30s BC 20s BC 10s BC
Years:	43 BC 42 BC 41 BC – 40 BC – 39 BC 38 BC 37 BC

Year 40 BC was either a common year starting on Thursday, Friday or Saturday or a leap year starting on Thursday or Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Calvinus and Pollio.

Events

Lucius Antonius surrenders to Octavian in the Siege of Perusia
Octavian divorces Clodia Pulchra and marries Scribonia
Sextus Pompey captures Sardinia
Treaty of Brundisium: The Roman Republic is divided. Gaius Octavian takes control of the Western provinces. Mark Antony is given the Eastern provinces. Marcus Aemilius Lepidus controls Hispania and Africa.
Quintus Labienus occupies Cilicia and marches with an army into Anatolia.
Parthians conquer Jerusalem. Hyrcanus II is removed from power.
Herod the Great flees Jerusalem to Rome. There he is titled king of Judea by Mark Antony.

Gaius Claudius Marcellus Minor dies, leaving Octavia Minor widowed. She will later marry Mark Antony by decree of the Roman Senate (b. 88 BC)
Fulvia, wife of Publius Clodius Pulcher