Hannibal crosses the Alps, and Rome nearly loses everything
What happened
Rome and Carthage fought three wars over more than a century for control of the western Mediterranean. In the second of them, the Carthaginian general Hannibal gambled everything on marching his army, elephants included, over the Alps into northern Italy, then won battle after battle against Rome. At Cannae in 216 BCE he lured the Roman center forward, let it collapse inward as planned, and closed his flanks around the trapped legions from behind: 44,000 Roman soldiers died against roughly 6,000 of Hannibal's own. Carthage never sent him the reinforcements to finish the job, and Rome, astonishingly, absorbed the loss and kept fighting. Decades later, in 146 BCE, Roman general Scipio Aemilianus besieged Carthage for three years, and when it finally fell, sacked and burned the city to the ground; it lay in ruins for over a century.
Why it matters
Cannae remains one of history's most complete tactical annihilations of one army by a smaller one, and Rome's ability to absorb 44,000 dead in a single afternoon and still ultimately win the war says as much about Rome's depth of manpower as Hannibal's genius says about tactics. Carthage's total destruction removed the one power capable of contesting Rome for the western Mediterranean, clearing the path for everything that follows in this timeline.
How we know
Roman and Greek historians writing within a few generations of the wars, working partly from participants' own accounts, describe both Cannae's tactics and Carthage's final siege in detail, and the totality of Carthage's destruction is corroborated by the archaeological record of the city's long abandonment afterward.
Sources
- World History Encyclopedia. Punic Wars · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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Part of a timelineAncient Rome30 events · From a legendary fratricide on the Palatine Hill to a teenage emperor's quiet deposition twelve centuries later, told through the battles, plagues, and one bridge-crossing that ended a republic.View all →