Hannibal's defeat led to rise of Roman Empire: study

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The defeat of the Carthaginian general Hannibal Barca - considered one of the greatest military commanders in history - in the Second Punic War led to the rise of Rome from a regional power to an Empire, say scientists who studied ancient Roman coins.
The Second Punic War from 218 to 201 BC, where Hannibal famously marched his elephants across the Alps in a failed attack on Rome, has been regarded as one of the pivotal events of European history.
Rome entered the war as the dominant power in Italy, but emerged an empire. The war led to the conquest of the Iberian Peninsula, with the Romans gradually gaining control over the lucrative Spanish silver mines from around 211 BC.

Revenues from the rich Spanish silver mines coupled with booty and extensive war reparations from Carthage - located in present-day Tuninia - helped fund the expansion of its territory.
Now the application of geochemical analysis techniques has provided proof of the importance of the Spanish silver to the Roman conquest.
Scientists led by Fleur Kemmers and Katrin Westner from the Goethe University in Germany analysed 70 Roman coins dating from 310-300 BC to 101 BC, a period which bracketed the Second Punic War.

Using mass spectrometry, they were able to show that lead in the coins made after 209 BC has distinctive isotopic signatures which identified most of the later coins as presumably originating from Spanish sources.

The changing origin of the coin bullion is mirrored by differing ratios of the lead isotopes 208Pb, 207Pb, 206Pb and 204Pb, which serve as geological clocks recording the formation age of the ores used to extract the silver.
After 209 BC, the lead isotope signatures mostly correspond to those of deposits in southeast and southwest Spain or to mixtures of metal extracted from these districts.
"Before the war we find that the Roman coins are made of silver from the same sources as the coinage issued by Greek cities in Italy and Sicily," said Westner.
"In other words the lead isotope signatures of the coins correspond to those of silver ores and metallurgical products from the Aegean region," she said.

"But the defeat of Carthage led to huge reparation payments to Rome, as well as Rome gaining high amounts of booty and ownership of the rich Spanish silver mines," she added.
"From 209 BC we see that the majority of Roman coins show geochemical signatures typical for Iberian silver," said Westner.
This massive influx of Iberian silver significantly changed Rome's economy, allowing it to become the superpower of its day.
"We know this from the histories of Livy and Polybius and others, but our work gives contemporary scientific proof of the rise of Rome," said Westner.
It shows that the defeat of Hannibal and the rise of Rome is written in the coins of the Roman Empire, she said.