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. Many Greek ceramics and amphoras imported from Massalia, as well as local productions of fine art pottery dated to the second part of the 6th century BC were found on the site of Bourges, which, according to historian Venceslas Kruta, gives archeological credit to the essence of the tradition reported by Livy evoking the power of the people of the region well before his own time. Kruta further contends that the story "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."