The Third Punic War began with Roman demands that Carthage abandon and destroy its city; when the Carthaginians refused, Rome besieged it from 149 to 146 BCE. The final assault involved days of street fighting through the residential quarters, and the city was burned and systematically demolished on the Senate's instruction. Ancient accounts report tens of thousands killed and roughly 50,000 survivors sold into slavery; the territory became the Roman province of Africa. Because the object was explicitly the elimination of the city rather than its subjugation — Cato's repeated demand that Carthage must be destroyed, and the Senate's decree of demolition — the historian Ben Kiernan, writing for the Yale Genocide Studies Program, argues that the episode meets the terms of the 1948 Genocide Convention while acknowledging it was neither a racial extermination nor a war on Carthaginian culture as such. Other historians reject applying the modern category. The story that Rome sowed the site with salt is a nineteenth-century invention with no ancient authority.
Rome besieged Carthage for three years under Scipio Aemilianus, destroyed the city, killed most of its population and sold the survivors into slavery, annexing its territory as the province of Africa
Strabo reports 700,000 inhabitants at the siege, a figure modern historians treat as rhetorical. Estimates from the walled area and from the city's known military manpower put Carthage at roughly 200,000-400,000 in 149 BCE, making it one of the largest cities in the Mediterranean. Appian says 50,000 survivors surrendered and were sold into slavery.
The lower figure is Appian's report of 70,000 killed in the final assault, which Kiernan considers exaggerated for that phase; the upper figure is Kiernan's own estimate of total deaths across the three-year siege, derived from a pre-siege population of 200,000–400,000 against roughly 50,000 recorded survivors. The disagreement is driven by the unknown size of the city's population and by the fact that every ancient count comes from Roman-era authors.
Polybius, who was present, and Appian describe the three-year blockade and famine, the killing during the final assault and the systematic demolition and burning of the city, as analysed by Kiernan.
Tunisia, Italy