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:	49 BC 48 BC 47 BC - 46 BC - 45 BC 44 BC 43 BC

46 BC by topic

Politics

State leaders - Sovereign states

Birth and death categories

Births - Deaths

Establishments and disestablishments categories

Establishments - Disestablishments v • d • e

46 BC in other calendars

Gregorian calendar	46 BC
Ab urbe condita	708
Armenian calendar	N/A
Bahá'í calendar	-1889 – -1888
Berber calendar	905
Buddhist calendar	499
Burmese calendar	-683
Byzantine calendar	5463 – 5464
Chinese calendar	甲戌年 (2591/2651) — to — 乙亥年 (2592/2652)
Coptic calendar	-329 – -328
Ethiopian calendar	-53 – -52
Hebrew calendar	3715 – 3716
Hindu calendars
- Vikram Samvat	10 – 11
- Shaka Samvat	N/A
- Kali Yuga	3056 – 3057
Holocene calendar	9955
Iranian calendar	667 BP – 666 BP
Islamic calendar	688 BH – 686 BH
Japanese calendar
Korean calendar	2288
Thai solar calendar	498
v • d • e

Year 46 BC was the last year of the pre-Julian calendar. This year had 445 days due to the errors that had accumulated in the pre-Julian calendar. The Julian calendar was introduced in this year, although it did not go into effect until 45 BC.

Events

By place

Rome

• Consuls: Gaius Julius Caesar, Marcus Aemilius Lepidus
• Civil War:
  • January 4 — Titus Labienus bloodily defeats Julius Caesar in the Battle of Ruspina.
  • February 6 — Julius Caesar defeats the combined army of Pompeian followers and Numidians under Metellus Scipio and Juba at Thapsus.
  • April 20 — Cicero, in Rome, writes to Varro "If our voices are no longer heard in the Senate and in the Forum, let us follow the example of the ancient sages and serve our country through our writings, concentrating on questions of ethics and constitutional law."
  • September 26 — Julius Caesar dedicates a temple to his mythical ancestor Venus Genetrix in fulfillment of a vow he made at the battle of Pharsalus.
  • November — Caesar leaves for Farther Hispania to deal with a fresh outbreak of resistance.
  • Caesar reforms the Roman calendar to create the Julian calendar. The transitional year is extended to 445 days to synchronize the new calendar and the seasonal cycle. The Julian Calendar would remain the standard in the western world for over 1600 years, until superseded by the Gregorian Calendar in 1582.
  • Caesar appoints his nephew Octavian his heir.
  • Caesar subdues a mutiny of his Tenth Legion.
  • Caesar celebrates his Gallic Triumph, after which Vercingetorix is executed.
• c. 46 BC–39 BC — Vitruvius described Etruscan and Roman architecture.

Births

Deaths

• Marcus Porcius Cato, the younger commits suicide after the battle of Thapsus
• Metellus Scipio (Quintus Caecilius Metellus Pius Cornelianus Scipio Nasica) killed at the battle of Thapsus while his forces attempt to surrender
• Vercingetorix, Gaul leader