On This Day

49 BC Julius Caesar defies the Roman Senate and crosses the Rubicon, uttering "alea iacta est" (the die is cast), signal

49 BC Julius Caesar defies the Roman Senate and crosses the Rubicon, uttering "alea iacta est" (the die is cast), signaling the start of civil war and his appointment as Roman dictator for life

49 BC Julius Caesar defies the Roman Senate and crosses the Rubicon, uttering "alea iacta est" (the die is cast), signaling the start of civil war and his appointment as Roman dictator for life

Key People

Julius Caesar

Roman general and dictator

Roman general and dictator

Events Before

  1. 43 BC Octavian, later known as Augustus, compels the Roman Senate to elect him consul

    43 BC Octavian, later known as Augustus, compels the Roman Senate to elect him consul

  2. 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...

  3. 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.

  4. 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

  5. 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

Events After

  1. 52 BC Vercingetorix, leader of the Gauls, surrenders to the Romans under Julius Caesar, ending the siege and Battle of A

    52 BC Vercingetorix, leader of the Gauls, surrenders to the Romans under Julius Caesar, ending the siege and Battle of Alesia

  2. 54 Agrippina the Younger murders her husband, Roman Emperor Claudius, with poison to secure the succession for her son N

    54 Agrippina the Younger murders her husband, Roman Emperor Claudius, with poison to secure the succession for her son Nero

More from the 40s

Frequently Asked Questions

What happened on January 10, 49?
49 BC Julius Caesar defies the Roman Senate and crosses the Rubicon, uttering "alea iacta est" (the die is cast), signaling the start of civil war and his appointment as Roman dictator for life
Who was involved in 49 BC Julius Caesar defies the Roman Senate and crosses the Rubicon, uttering...?
Key figures include Julius Caesar (Roman general and dictator).

Explore More