In the 19th century, heated saltwater public baths opened and became especially popular with higher classes. Others claim that the practice of thalassotherapy is older: "The origins of thermal baths and related treatments can be traced back to remote antiquity.
In the 19th century, heated saltwater public baths were inaugurated and became particularly popular with upper classes. Similarly, some argue that thalassotherapy has deeper roots: "The origins of thermal baths and related treatments can be traced back to ancient times."