Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page History of France:

"

When Carthaginian commander Hannibal fought the Romans, he recruited several Gaulish mercenaries who fought on his side at Cannae. It was this Gaulish participation that caused Provence to be annexed in 122 BC by the Roman Republic.[5] As the Consul of Gaul, Julius Caesar conquered all of Gaul. Despite Gaulish opposition led by Vercingetorix, the Gauls succumbed to the Roman onslaught. The Gauls had some success at first at Gergovia but were ultimately defeated at Alesia in 52 BC. The Romans founded cities such as Lugdunum (Lyon), Narbonensis (Narbonne) and allowed in a correspondence between Lucius Munatius Plancus and Cicero to formalize the existence of Cularo (Grenoble).[citation needed]