Aquae Helveticae

Aquae Helveticae was a Roman vicus and mineral spa established in the 1st century AD near the legion camp of Vindonissa at Windisch [1]. The hot mineral springs, reaching 47°C (117°F) and rich in sulfur, were discovered around 20 AD at a bend in the Limmat river [1][2]. The settlement quickly developed around the springs, prized by Romans for their therapeutic waters [2]. The site gave its name to the modern town of Baden, Switzerland, and is a Swiss heritage site of national significance [1][3].