Yverdon-les-Bains (called Eburodunum and Ebredunum during the Roman era) is a municipality in the district of Yverdon of the canton of Vaud in Switzerland. It is the seat of the district.
Yverdon is located in the heart of a natural setting formed by the Jura mountains, the plains of the Orbe, the hills of the Broye and the Lake Neuchâtel. It is the second most important town in the Canton of Vaud. It is famous for its thermal springs and is an important regional centre for commerce and tourism.
The Celtic Helvetii are said to have been the first permanent settlers of Eburodunum (Celtic and Roman name of Yverdon), from about the 2nd century B.C.E..
About a century later, the Romans realized the commercial and strategic importance of this place: it controlled major routes such as Geneva-Avenches, connecting the Rhone and Rhine basins, as well as those of Rhone and Danube.
The imposing Castrum, or stronghold, called Castrum Ebredunense was the second largest in Switzerland and demonstrated the importance the Romans attached to Yverdon. The port served as naval base for the barges supplying the defensive positions along the Rhine, which marked the North-Eastern border of the Empire.
Thus the Roman "Vicus" of Eburodunum developed into a prosperous urban centre. The sulphur springs were already used for a thermal spa, as attested by excavations. It is even possible that the Helvetii appreciated the beneficial effects of these waters. (
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) The Castrum was noted in the Notitia Dignitatum (dated c. 420 C.E.).
When Peter II of Savoy gradually extended his rule over the Pays de Vaud (Land of Vaud), he managed to impose road tolls as well as port and fishing taxes. He founded the new town ("Ville Neuve") of Yverdon, defended by walls and a castle. Construction works were launched around 1259 and attracted many settlers. (
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Yverdon's castle used to be the residence of the castellans of the Savoy dynasty, until 1536, followed by the bailiffs of Bern state. In 1798, the Département du Léman became the castle's owner. The Département had been set up by the shortlived "Helvetian Republic" (1798–1803), imposed by Napoleon I.
A few years later, Yverdon acquired the castle, to entrust it to Johann Heinrich Pestalozzi and his institute. After 1838, the castle housed a public school. New classrooms were created, especially on the second floor: dividing walls were erected, additional windows changed the severe look of the castle's façade.
After 1950, these classrooms were gradually abandoned; the last classes left in 1974. The original medieval structure was then restored. The castle is today a multi-purpose cultural centre, housing a regional museum, a theatre, various conference rooms and the oldest public library of French-speaking Switzerland, founded already in 1763. The library is now part of the castle museum, existing since 1830. (
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The Bernese conquest followed. During the nearly three hundred years of Bernese occupation, economic life continued to thrive.
The 18th century proved to be one of Yverdon's most favorable periods, marked by cultural and economic highlights. Then a town of about 2.000 inhabitants, Yverdon radiated as a spa, and as a centre of thought (58 tomes of Yverdon Encyclopedia, published between 1770 and 1780), being in close contact with the great minds and movements of the time. (
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By 1728, the authorities decided to have a new spa constructed. Its reputation grew rapidly. The 18th century saw major developments and brilliant success, for the town and the spa. Then followed a period of decline: the spa lost its drive and popularity, and degraded to a simple political meeting point, by 1800 already. Completely neglected, the buildings dilapidated.
Encouraged by the Spanish scientist A. Gimbernat, the local Council decided to reconstruct the spa centre and to renovate its hotel in 1897. The consequences of the First World War (1914–1918) were detrimental, the number of guests having significantly declined. Its reputation remained however intact, until the 30’s.
Another period of decay followed, and by 1960 the centre and its equipment were again so dilapidated that they had to be closed. The idea of balneology had also completely changed. The Municipality repurchased the spa, including the neighbouring Château d'Entremonts.
Restoration failed twice, but the project of 1974 could finally be realized two years later. The spa reopened in 1977. Prospects for further thermal springs were successful in 1982, and a new outdoor pool could be added a year later. Today, the spa welcomes more than 1.200 visitors per day. (
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