The Roman Republic was one of the most remarkable achievements in the history of civilization. Beginning as a small city-state in central Italy, Rome gradually expanded into a wider world filled with petty tyrants, barbarian chieftains, and despotic kings. Through the centuries, Rome's model of cooperative and participatory government remained remarkably durable and unmatched in the history of the ancient world.

In 146 BC, Rome finally emerged as the strongest power in the Mediterranean. But the very success of the Republic proved to be its undoing. The republican system was unable to cope with the vast empire Rome now ruled: rising economic inequality disrupted traditional ways of life, endemic social and ethnic prejudice led to clashes over citizenship and voting rights, and rampant corruption and ruthless ambition sparked violent political clashes that cracked the once indestructible foundations of the Republic.

Chronicling the years 146-78 BC, Mike Duncan's book The Storm Before the Storm: The Beginning of the End of the Roman Republic (PublicAffairs, 2017) dives headlong into the first generation to face this treacherous new political environment. Abandoning the ancient principles of their forbearers, men like Marius, Sulla, and the Gracchi brothers set dangerous new precedents that would start the Republic on the road to destruction and provide a stark warning about what can happen to a civilization that has lost its way.

Aven McMaster and Mark Sundaram are historians and the hosts of the excellent podcast The Endless Knot.

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