Hannibal
The Boy Who Swore an Oath Against Rome
Born around 247 BC in Carthage, in present-day Tunisia, Hannibal was the Carthaginian general who crossed the Alps with war elephants in the Second Punic War and annihilated a Roman army at Cannae in 216 BC — a victory still studied in military academies — before losing to Scipio at Zama and dying in exile.
- 19 min listen
- Carthaginian general
- Crossed the Alps
- Victor of Cannae
Hannibal’s full 19 min audio biography, The Boy Who Swore an Oath Against Rome, is available on Lyfestori for iOS. Listen to a free preview below.
A life in brief
Hannibal: life and timeline.
At about nine, before sailing to Spain with his father, Hannibal put his hand on a sacrificed animal and swore never to be a friend of Rome — or so he told a king decades later. He grew up in an army camp, took command at twenty-six and, in 218 BC, marched an army and thirty-seven elephants over the Alps in late autumn. Within two years he had destroyed three Roman armies, the last at Cannae. He never took Rome. He died in exile, poison in hand, with soldiers at every door.
- 247
Born in Carthage, 247 BC
Born to Hamilcar Barca, a leading Carthaginian commander in the First Punic War against Rome, which Carthage loses six years later.
- 237
The oath, 237 BC
As his father prepares to sail for Spain to build a new power base, the nine-year-old Hannibal swears at an altar never to be a friend of Rome. He grows up in the army.
- 221
Commander in Spain, 221 BC
After Hamilcar's death around 228 BC and the assassination of his brother-in-law Hasdrubal, the army acclaims Hannibal as its general at about twenty-six.
- 219
Siege of Saguntum, 219 BC
He besieges and takes the Rome-allied Spanish town. A Roman embassy in Carthage offers war or peace from the fold of a toga, and the Second Punic War begins in 218 BC.
- 218
Over the Alps, 218 BC
He leaves New Carthage with, by Polybius's count, 90,000 infantry, 12,000 cavalry and 37 elephants, ferries the elephants across the Rhône on rafts and crosses the Alps in late autumn snow. In December he crushes a Roman army at the Trebia.
- 217
Lake Trasimene, 217 BC
After four days and three nights through flooded marshes, in which an infection costs him the sight of one eye, he ambushes a consular army in the morning mist, killing around 15,000 including the consul Flaminius.
- 216
Cannae, 216 BC
Facing one of the largest armies Rome had ever fielded, he lets his crescent-shaped centre give way and closes the trap with his cavalry. Somewhere between 50,000 and 70,000 Romans and allies die in a single day.
- 211
At the gates of Rome, 211 BC
He marches to within three miles of the city to draw Roman forces away from Capua. Rome holds, and "Hannibal at the gates" becomes a proverb for imminent danger.
- 207
The Metaurus, 207 BC
His brother Hasdrubal crosses the Alps with reinforcements but is intercepted and killed. According to Livy, his severed head is thrown into Hannibal's camp.
- 202
Zama, 202 BC
Recalled to defend Africa, he meets Publius Cornelius Scipio, asks for terms and is refused. Scipio's army opens lanes for the elephants and his cavalry strikes the rear — Hannibal's only major battlefield defeat.
- 196
Suffete of Carthage, 196 BC
Elected one of Carthage's chief magistrates, he attacks corruption and shows the indemnity to Rome can be paid without new taxes. In 195 BC, denounced to Rome by his enemies, he flees by night.
- 183
Death in Bithynia, c. 183 BC
After years with Antiochus III and other eastern rulers, he is cornered at Libyssa when King Prusias I agrees to hand him over to Rome. He takes poison he had long kept ready, aged about sixty-four.
Major achievements
Hannibal: major achievements.
- 01
Crossing the Alps
Others had crossed the Alps, but not a large army with cavalry, baggage and elephants, in late autumn, through hostile tribes and early snow. He arrived in Italy with perhaps 26,000 men and won anyway.
- 02
Cannae
His double envelopment of a far larger Roman army became the textbook model of annihilation, studied obsessively by Alfred von Schlieffen and the German General Staff and still taught in officer education.
- 03
Fifteen years in enemy territory
From the Trebia in 218 BC to his recall in 203 BC, he kept a multinational army of Africans, Iberians and Gauls together in Italy with no secure supply line and little reinforcement from home.
- 04
Reforming Carthage
As suffete he investigated public finances and the entrenched oligarchy, showing that the city's indemnity to Rome could be met without burdening ordinary citizens.
Turning points
Hannibal: defining moments.
- c. 237 BC
The oath at the altar
Rome had used Carthage's weakness after the First Punic War to seize Sardinia and Corsica — a grievance Polybius saw as a seed of the next war. Hamilcar took his son to Spain and, by Hannibal's own later account, bound him to lifelong hostility toward Rome.
- 216 BC
The march that never came
After Cannae, Hannibal did not march on Rome. He expected Rome's Italian allies to defect and the Senate to negotiate. Most allies stayed loyal and Rome refused even to ransom its prisoners.
- 202 BC
Scipio at Zama
A younger Roman general had learned from him. By invading Africa, Scipio forced Hannibal home, and at Zama used cavalry and envelopment — Hannibal's own weapons — to defeat him.
- 195 BC
Flight from Carthage
His reforms made enemies among Carthage's elite, who accused him to Rome of plotting with Antiochus III. When Roman envoys arrived he slipped away by night and spent the rest of his life in exile.
You know how to win a victory, Hannibal, but not how to use one.
Maharbal to Hannibal after Cannae, according to Livy, History of Rome 22.51
What you’ll take away
Lessons from Hannibal’s life.
- 01
Tactical brilliance is not strategy
Hannibal won almost every battle in Italy and lost the war. Victories that do not change the opponent's will or alliances only buy time.
- 02
Your enemy is studying you
Scipio beat Hannibal with Hannibal's methods. Every decisive move teaches the other side something.
- 03
Endurance is a weapon
After Cannae, Rome refused to negotiate and kept mobilising. That stubbornness, more than any single general, decided the war.
- 04
Choose your promises carefully
He kept a promise made at nine for more than fifty years. Keeping it brilliantly did not save Carthage, which Rome destroyed in 146 BC.
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FAQ
Frequently asked questions about Hannibal.
What was Hannibal's full name?
He is known as Hannibal Barca. "Hannibal" is Punic for roughly "grace of Baal", and "Barca" — likely meaning "thunderbolt" — was his father Hamilcar's surname or epithet, which modern writers extend to the whole family.
Who was Hannibal of Carthage?
A Carthaginian general who led the war against Rome from 218 to 201 BC, the Second Punic War. He invaded Italy over the Alps, won at the Trebia, Trasimene and Cannae, and was finally defeated by Scipio at Zama in 202 BC.
When did Hannibal cross the Alps?
In late autumn 218 BC. His exact route is still debated, but he descended into northern Italy with perhaps 20,000 infantry and 6,000 cavalry after losing many men to cold, terrain and attacks by mountain tribes.
Why did Hannibal cross the Alps?
To take the war to Italy before Rome could invade Africa or Spain. Rome controlled the sea, so the land route was the only way to strike at Rome's heartland and try to break its alliance system.
Where did Hannibal get his elephants?
Most likely from North Africa. Carthage used now-extinct North African forest elephants, smaller than modern African bush elephants; some historians think he also had at least one Asian elephant.
Did Hannibal conquer Rome?
No. Despite crushing Roman armies, he never besieged the city. He lacked siege equipment and reinforcements, and most of Rome's Italian allies refused to defect after Cannae.
How did Hannibal die?
By poison, around 183 BC, at Libyssa in Bithynia in present-day northwestern Turkey. When King Prusias I agreed to surrender him to Rome and soldiers surrounded his house, he took poison he had kept ready for years.
What did Hannibal look like?
No certain portrait survives. Ancient writers say he lost the sight of one eye to infection in 217 BC, and some coins and a marble bust are traditionally linked to him, though the identifications are uncertain.
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19 min · one sitting