Julius Caesar broke the Roman Republic years before he crossed the Rubicon, and this episode follows how he did it, from his birth in 100 BC through the consulship of 59 BC and the conquest of Gaul to the deadline of 50 BC.

Caesar came from one of Rome's oldest patrician families and had almost no money. He survived Sulla's proscriptions after refusing to divorce Cornelia, the daughter of Cinna, borrowed his way up the ladder of offices, and won the election for Pontifex Maximus in 63 BC on debts that would have ended his career if he had lost. Marcus Crassus guaranteed his loans so he could leave for Spain.

As consul in 59 BC, Caesar passed his land law over the obstruction of his colleague Marcus Calpurnius Bibulus, who had dung dumped over his head in the Forum and then shut himself in his house for the rest of the year, announcing that he was watching the skies. Caesar ignored him. That year showed that the Republic's lawful brakes only worked if the man being stopped agreed to stop, and it left Caesar open to prosecution the moment he became a private citizen again.

The Lex Vatinia gave him a five-year command in Cisalpine Gaul and Illyricum, and the Senate added Transalpine Gaul. Over the next nine years he fought the Helvetii, Ariovistus, the Belgae, and the Veneti, bridged the Rhine, crossed to Britain twice, and defeated Vercingetorix at the siege of Alesia in 52 BC. The war gave him an army loyal to him, a fortune he used to put senators in his debt, and his own account of the war, the Commentaries on the Gallic War, written in the third person for voters back in Rome.

By 50 BC the Republic had no safe way to make Caesar a private citizen again. I lean on Caesar's own account through much of this episode because it's often all we have, so I'd encourage you to read the Gallic War yourself and keep asking what he wanted his readers to believe.

Fall of the Republic series:

Tiberius Gracchus • Marius • The Social War • Sulla • Spartacus • The Men Who Bought the Republic • Pompey • Julius Caesar (you are here) • The Secret Deal That Ended the Roman Republic • The Day Rome's Elections Stopped Mattering • The Last Stand of the Roman Republic • The Ides of March • Cicero • The Pattern: How Republics Really Die

Next: The Secret Deal That Ended the Roman Republic. In 56 BC, Caesar, Pompey, and Crassus renewed their alliance at Luca and settled the next elections in advance.

The Money, Borders, Power framework primer is episode 115.

Sources: Caesar, Commentaries on the Gallic War; Suetonius, The Deified Julius; Plutarch, Life of Caesar; Cicero, Letters to Atticus; Cassius Dio, Roman History, Books 37 to 40. Modern: Adrian Goldsworthy, Caesar: Life of a Colossus (2006); Matthias Gelzer, Caesar: Politician and Statesman; Ronald Syme, The Roman Revolution (1939).

CHAPTERS

00:00 Caesar broke Rome before the Rubicon

01:36 Welcome back

02:39 An old family with no money

05:46 Pirates, debts, and the climb up the ladder

10:33 The consulship of 59 BC and Bibulus

14:19 The trap: why Caesar could never step down

15:50 The Gallic command and the conquest of Gaul

19:41 Vercingetorix and the siege of Alesia

21:53 The Gallic War as propaganda

25:08 50 BC: no way back to private life