Caesar's report has been partly confirmed by excavations near Geneva and Bibracte. However, much of his account has not yet been corroborated by archaeology, whilst his narrative must in wide parts be considered as biased and, in some points, unlikely. For a start, only one out of the fifteen Celtic oppida in the Helvetii territory so far has yielded evidence for destruction by fire. Many other sites, for example the sanctuary at Mormont, do not exhibit any signs of damage for the period in question, and Celtic life continued seemingly undisturbed for the rest of the 1st century BC up to the beginning of the Roman era, with an accent rather on an increase in prosperity than on a Helvetic twilight. With the honourable status as foederati taken into account, it is hard to believe that the Helvetii ever sustained casualties quite as heavy as those given by the Roman military leader.