Although the background of the story is anachronistic, for the historical Celtic invasion of the Italian Peninsula occurred between the end of the 5th century and the middle of the 4th century BC, in the context of the Battle of the Allia (387 BC), the essence of the myth was most likely inspired by actual events. According to historian Venceslas Kruta, the story of Bellovesus "is probably the legendary construction of a 'myth of origins', likely Insubrian, which integrates various elements borrowed from Celtic, Cisalpine and Transalpine traditions, as well as Massaliote and Etrusco-Italian." The Gallic tribes mentioned in the legend were probably arranged freely out of names current at the time of Livy in the late 1st century BC.