The documentary review opens with Alésia, by Alphonse Delacroix, a paper presented to the société d'émulation du Doubs on 10 November 1855. It was this paper that triggered the debate about the location of Alesia. Delacroix, an architect in Besançon, claimed that Alaise was in the Doubs region. In one of his somewhat unusual arguments he made a link between the Gauls, besieged in Alesia and dying of starvation, and a local saying referring to “those who eat the foam from melted butter”. He also provided a study which made use of topography, toponymy and a reading of Caesar’s The Conquest of Gaul.