chapel (the Saint Martin chapel on Mont Beuvray) established to Christianize the Aedui. He also returned to Mont Beuvray to take more notes. He discovered what he thought was the embankment of a Roman camp (actually a nemeton) at the summit of Mont Beuvray next to the chapel. He documented it and considered placing Bibracte at Mont Beuvray instead of Autun, contrary to the unanimous opinion of the Aedui Society. The publication of his Essay on the Roman System of Defense in the Aedui country between the Saône and the Loire, in which he revealed his convictions, was not taken seriously by the members of the Society of Archeology. Emperor Napoleon III took an interest in the battles of the Gallic Wars and an officer named Stoffel, charged by the Emperor with conducting investigations of the Roman victory over the Helvetii, visited Bulliot, who shared with him his opinions about the location of Bibracte. Stoffel was not interested, but he commissioned Xavier Garenne, another member of the Aedui Society, to make a survey of Mont Beavray. At the same time, the Viscount of Aboville, the owner of the land, conducted research and shared it with the Archbishop of Reims, who was a member of the Aedui Society and a friend of Bulliot, though he did not share Bulliot's theory about the location of Bibracte. Interested by these investigations, the Archbishop shared the various findings with the Emperor who, in 1867, assigned Bulliot to do research at Mont Beavray and funded his work. Bulliot excavated the site from 1867 to 1905, removing all doubt about the location of Bibracte. His nephew Joseph Déchelette, whom he introduced to excavation, continued the work until 1907, comparing Bibracte to other sites in Europe such as Stradonice in Bohemia, the Manching in Germany and Velem-Zenst-Vid in Hungary, which were precursors of the cultural unification of the Celtic world and of the civilization of oppida. History of the oppidum Chronology of the population of Beuvray During the excavations of the gate, five artifacts were discovered, the oldest of which demonstrated human habitation on Mont Beuvray in the Neolithic Era. Dating techniques have shown that the oppidum was founded at end of the 3rd century BCE, on an area of 200 hectares protected by the exterior rampart. An interior rampart was built later, for reasons unknown. Because the Aedui had the status of "friend of the Roman