In the middle of the XV century there was information regarding exploitation of the waters of Bagni di Quara, where even a "structure" had been constructed at its springs by the feudal vassal Luigi da Dallo. Various references referring to its existence and use existed already in the Roman period (so much so that the hamlet was called Acquarium"); the water was used to treat a few skin diseases. Michele Savarnarola, of the Este's doctors, considered it effective in stomach diseases, in all other limb affections and able to stimulate appetite and having laxative effects. These waters were even brought to France and Spain. A report of Antonio Vallisneri states that in ancient times they were called "Balneum Acquarium", even Ricci and Filippo Re underlined its therapeutic action. Captain Ottavio Ferrarini revealed in an outline attached to his inspection in 1970 indications of a few ruins of an antique temple. Chemical analysis of this water emphasized interesting data which allow it to be defined, according to current legislation as "rich inn mineral salts, containing bicarbonate, chlorinate, sodium".