Rubicon: The Last Years of the Roman Republic

January of 49 BC, northern Italy. General Julius Caesar stands on the bank of a stream called the Rubicon. Roman law forbade any general from entering Italy at the head of an army: anyone who crossed that river under arms automatically became an enemy of the state. Caesar knew that. He crossed anyway.

It was not sudden madness. It was the result of decades of rivalry among powerful Romans, each convinced he deserved more glory and higher office than his opponent. Tom Holland uses this crossing as the doorway into the story of how the Roman Republic, after almost 500 years, reached this point of no return.

The question that guides the whole book is simple to state: how did a system created to keep one man from ruling Rome end up destroyed by the ambition of men who, each in his own way, swore they were saving the Republic itself?

Rome was ruled by kings until 509 BC, when the last of them, accused of abuse of power, was driven out. From then on, the Romans built a system to keep any single man from gathering that much power again: two consuls in place of one king, elected for just one year, each able to veto the other.

Calling an ambitious citizen a king was the worst insult you could throw at him, even when he was acting, in practice, almost like one. That contradiction is what the book explores: a society obsessed with preventing one-man power, which created among its elites a competition so violent that it made that concentration of power almost inevitable.

For a Roman aristocrat, money alone was not enough. What truly mattered was glory: being remembered, parading in a triumph through the streets of Rome after a military victory. In the homes of the most traditional patrician families, wax masks of their ancestors' faces were kept, the so-called imagines, displayed at funerals to remind everyone how many consuls that family had given Rome.

Growing up in a family like that meant carrying, from childhood, the weight of matching or surpassing what your ancestors had done. A Roman who reached forty without having been consul felt like a failure, even if rich, because what really counted was the office and the statue in the square, not the balance in the bank.