Sulis to various Indo-European words for "sun" (cf. Homeric Greek ηέλιος, Sanskrit "sūryah" "sun", from Proto-Indo-European "*suhlio-"). Sulis was the local goddess of the thermal springs that still feed the spa baths at Bath, which the Romans called "Aquae Sulis" ("the waters of Sulis"). Her name primarily appears on inscriptions discovered at Bath, with only a single instance outside of Britain at Alzey, Germany. This is not surprising, as Celtic deities often preserved their archaic localisation. They remained to the end associated with a specific place, often a cleft in the earth, a spring, pool or well. The Greeks referred to
Albulae Aquae fact." Albulae Aquae Albulae Aquae ("The White Water") is a group of springs located West of Tivoli in Italy. The springs' water is bluish, strongly impregnated with sulphur and carbonate of lime, and rises at a temperature of about . The remains of a Roman thermal establishment exist near the principal spring, the so-called Lago della Regina, which is continually diminishing in size owing to deposits left by the water. Dedicatory inscriptions in honour of the waters have been found at the site. It is mentioned briefly by many ancient authors, among them, Virgil, Vitruvius, Isidore of Seville, and Pliny