The Vandals were a Germanic tribe who are first mentioned in Roman history in the Natural History of Pliny the Elder (77 CE). The Roman historian Tacitus also mentions them in his Germania (c. 98 CE), though he also refers to them as the "Lugi". Their name may mean "the wanderers" and was given by both Pliny and Tacitus as "Vandilii". The name "vandal" has now become synonymous with careless destruction owing to the accounts by Roman writers describing their violent behavior generally and their sack of Rome in 455 CE specifically. Among the many other Germanic tribes, the Vandals were a part of the movement which historians call "The Wandering of the Nations," which took place roughly between 376-476 CE (though this is generally thought to have begun earlier and lasted later), in which large-scale migrations took place (often due to incursions by the Huns), bringing Germanic tribes into closer contact with the Roman Empire and other cultures. The Vandals breached the Roman frontier in c. 270 CE and became a part of Rome's history from that point on until the Battle of Tricamarum in North Africa in 533 CE, in which the Vandal king Gelimer was defeated by the Roman general Belisarius and, after this, the Vandals ceased to exist as a cohesive entity.