Lausonius Lacus or Lacus Lausonius was an ancient name referencing a town or region in the country of the

Helvetii The Helvetii ( , Gaulish: *''Heluētī''), anglicized as Helvetians, were a Celts, Celtic tribe or tribal confederation occupying most of the Swiss plateau at the time of their Switzerland in the Roman era, contact with the Roman Republic in the ...

about

Lake Geneva , image = Lake Geneva by Sentinel-2.jpg , caption = Satellite image , image_bathymetry = , caption_bathymetry = , location = Switzerland, France , coords = , lake_type = Glacial lak ...

; it was also an ancient name of the lake itself. The

Antonine Itinerary The Antonine Itinerary ( la, Itinerarium Antonini Augusti, "The Itinerary of the Emperor Antoninus") is a famous ''itinerarium'', a register of the stations and distances along various roads. Seemingly based on official documents, possibly ...

describes a road from Mediolanum (modern

Milan Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city h ...

) through

Geneva Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the List of cities in Switzerland, second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaki ...

Argentoratum Argentoratum or Argentorate was the ancient name of the city of Strasbourg. The name was first mentioned in 12 BC, when it was a Roman military outpost established by Nero Claudius Drusus. From 90 AD the Legio VIII Augusta was permanently statio ...

(modern

Strasbourg Strasbourg (, , ; german: Straßburg ; gsw, label=Bas Rhin Alsatian, Strossburi , gsw, label=Haut Rhin Alsatian, Strossburig ) is the prefecture and largest city of the Grand Est region of eastern France and the official seat of the Eu ...

). Sixteen

Roman mile The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of distance; both are based on the older English unit of length equal to 5,280 Engli ...

s from Geneva, on the road to Strasbourg, the Itinerary places Equestris (Colonia Equestris or

Noviodunum {{Unreferenced, date=December 2009 Noviodunum is a name of Celtic origin, meaning "new fort": It comes from '' nowyo'', Celtic for "new", and '' dun'', the Celtic for "hillfort" or "fortified settlement", cognate of English ''town''. Several places ...

) (modern

Nyon Nyon (; outdated German language, German: or ; outdated Italian language, Italian: , ) is a Municipalities of Switzerland, municipality in Nyon District in the Cantons of Switzerland, canton of Vaud in Switzerland. It is located some 25 kilomet ...

); and the next place is Lacus Lausonius, 20 Roman miles from Equestris (approximately 30 km). To the next station, Urba (modern

Orbe Orbe (; la, Urba; older german: Orbach, ; frp, Orba) is a municipality in the Swiss canton of Vaud. It was the seat of the former district of Orbe and is now part of the district of Jura-Nord Vaudois. History Orbe is first mentioned about 2 ...

), is 18 Roman miles (27 km). In the

Table Table may refer to: * Table (furniture), a piece of furniture with a flat surface and one or more legs * Table (landform), a flat area of land * Table (information), a data arrangement with rows and columns * Table (database), how the table data ...

the name is "Lacum Losonne", and the distances from Geneva to Colonia Equestris and Lacum Losonne are respectively 18 M.P., or 36 together. The Lacus Lausonius is supposed to be

Lausanne , neighboring_municipalities= Bottens, Bretigny-sur-Morrens, Chavannes-près-Renens, Cheseaux-sur-Lausanne, Crissier, Cugy, Écublens, Épalinges, Évian-les-Bains (FR-74), Froideville, Jouxtens-Mézery, Le Mont-sur-Lausanne, Lugrin (FR-74), ...

, on the Lake of Geneva; or rather a place or district, as

D'Anville Jean-Baptiste Bourguignon d'Anville (; born in Paris 11 July 169728 January 1782) was a French geographer and cartographer who greatly improved the standards of map-making. D'Anville became cartographer to the king, who purchased his cartographic ...

calls it, named "Vidi" (modern

Vidy Vidy is an area of the city of Lausanne ( Switzerland), on the shores of Lake Geneva (french: lac Léman). Since 1968, the headquarters of the International Olympic Committee have been at Vidy. The Olympic Museum and the Olympic Park (sculpture ...

). The distance from Geneva to Nyon, along the lake, is about 15 English miles (24 km); and from Nyon to Lausanne, about 22 or 23 miles (35 to 37 km). The distance from Geneva to Nyon is quite close, allowing for the variability of a coastal road; but the 20 Roman miles from Equestris to the Lacus Lausonius is not enough. If Vidi, which is west of Lausanne, is assumed to be the place, the measures will agree better. D'Anville cites M. Bochat as authority for an inscription, with the name ''Lousonnenses'', having been dug up at Vidi, in 1739; and he adds that there are remains there. Lousanna is the historical Roman settlement in the area, an important

vicus In Ancient Rome, the Latin term (plural ) designated a village within a rural area () or the neighbourhood of a larger settlement. During the Republican era, the four of the city of Rome were subdivided into . In the 1st century BC, Augustus r ...

where about 1500 people lived at its peak.

References

* {{coord missing, Switzerland Roman sites in Switzerland Helvetii Lake Geneva