On This Day

43 BC Second Triumvirate alliance of Roman leaders formed by Octavian (later Caesar Augustus), Marcus Aemilius Lepidus,

43 BC Second Triumvirate alliance of Roman leaders formed by Octavian (later Caesar Augustus), Marcus Aemilius Lepidus, and Mark Antony

Augustus, also known as Octavian (Latin: Octavianus), was the founder of the Roman Empire and the first Roman emperor from 27 BC until his death in AD 14. The reign of Augustus initiated an imperial cult and an era of imperial peace (the Pax Romana or Pax Augusta) in which the Roman world was largely free of armed conflict. The principate, a style of government where the emperor showed nominal deference to the Senate, was established during his reign and lasted until the Crisis of the Third Century.

Octavian was born into an equestrian branch of the plebeian gens Octavia. After his great-uncle, the dictator Julius Caesar, was assassinated in 44 BC, Octavian, whom Caesar named as his primary heir in his will, inherited Caesar's estate and assumed his name.

Historical Significance

Augustus, also known as Octavian (Latin: Octavianus), was the founder of the Roman Empire and the first Roman emperor from 27 BC until his death in AD 14.

Key People

Augustus Caesar

Roman emperor from 27 BC to AD 14

Roman emperor from 27 BC to AD 14

Augustus Caesar

Roman emperor from 27 BC to AD 14

Roman emperor from 27 BC to AD 14

Mark Antony

Roman politician and general

Roman politician and general

Events Before

  1. 38 BC Roman Republican Leader Octavian, later Augustus 1st Roman Emperor, weds Livia Drusilla

    38 BC Roman Republican Leader Octavian, later Augustus 1st Roman Emperor, weds Livia Drusilla

  2. 41 Claudius succeeds his nephew Caligula as Roman Emperor after the latter's assassination by officers of the Praetorian

    41 Claudius succeeds his nephew Caligula as Roman Emperor after the latter's assassination by officers of the Praetorian Guard

  3. 42 BC Second Battle of Philippi: Brutus's army is decisively defeated by Mark Antony and Octavian during the Roman Repub

    42 BC Second Battle of Philippi: Brutus's army is decisively defeated by Mark Antony and Octavian during the Roman Republican civil wars causing Brutus to fall on his sword

Events After

  1. 44 BC Julius Caesar is stabbed to death by Brutus, Cassius and several other Roman senators on the Ides of March in Rome

    The Ides of March (Latin: Idus Martiae, Medieval Latin: Idus Martii) is the day on the Roman calendar marked as the Idus, roughly the midpoint of a month, of Martius, corresponding to 15 March on the...

  2. 45 BC The Julian calendar takes effect for the first time by edict of Roman dictator Julius Caesar

    Gaius Julius Caesar (12 or 13 July 100 BC – 15 March 44 BC) was a Roman general and statesman who was the dictator of the Roman Republic at various points from 49 BC until his assassination in 44 BC.

  3. 46 BC Battle of Thapsus: Julius Caesar defeats Caecilius Metellus Scipio and Marcus Porcius Cato (Cato the Younger) near

    46 BC Battle of Thapsus: Julius Caesar defeats Caecilius Metellus Scipio and Marcus Porcius Cato (Cato the Younger) near Thapsus in modern-day Tunisia

  4. 48 BC Caesar's Civil War: Julius Caesar decisively defeats Pompey the Great at the Battle of Pharsalus, forcing Pompey t

    48 BC Caesar's Civil War: Julius Caesar decisively defeats Pompey the Great at the Battle of Pharsalus, forcing Pompey to flee to Egypt

  5. 49 Roman Emperor Claudius marries his fourth wife and niece Agrippina the Younger

    Julia Agrippina (6 November AD 15 – 23 March AD 59), also referred to as Agrippina the Younger, was Roman empress from AD 49 to 54, the fourth wife and niece of emperor Claudius, and the mother of…

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Frequently Asked Questions

What happened on November 26, 43?
Augustus, also known as Octavian (Latin: Octavianus), was the founder of the Roman Empire and the first Roman emperor from 27 BC until his death in AD 14. The reign of Augustus initiated an imperial cult and an era of imperial peace (the Pax Romana or Pax Augusta) in which the Roman world was largely free of armed conflict. The principate, a style of government where the emperor showed nominal deference to the Senate, was established during his reign and lasted until the Crisis of the Third Century.
Why is 43 BC Second Triumvirate alliance of Roman leaders formed by Octavian (later ... significant?
Augustus, also known as Octavian (Latin: Octavianus), was the founder of the Roman Empire and the first Roman emperor from 27 BC until his death in AD 14.
Who was involved in 43 BC Second Triumvirate alliance of Roman leaders formed by Octavian (later ...?
Key figures include Augustus Caesar (Roman emperor from 27 BC to AD 14), Augustus Caesar (Roman emperor from 27 BC to AD 14), Mark Antony (Roman politician and general).

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