Alesia is best known for being the site of the decisive Battle of Alesia in 52 BC that marked the defeat of the Gauls under Vercingetorix by the Romans under Julius Caesar. Caesar described the battle in detail in his "" (Book VII, 69–90). The battle's outcome determined the fate of all of Gaul: in winning the battle, the Romans won both the Gallic Wars and dominion over Gaul.