Aquae Calidae, Bulgaria Aquae Calidae, Bulgaria Aquae Calidae (Latin for warm waters), also known as Therma and Thermopolis in the Middle Ages, was an ancient town in Thrace located in the territory of today's Bulgarian port city of Burgas. It was built around thermal baths using the hot springs and became one of the most important spa centres of ancient times. The site and baths of Aquae Calidae have been visited in the course of history by several important rulers from Philip II of Macedon to the Eastern Roman emperors Justinian I and Constantine IV, the Bulgarian ruler Terwel and the Ottoman Sultan
Aquae Sulis cuamiun ai" "The affixed – Deuina, Deieda, Andagin, (and) Uindiorix – I have bound" An alternative translation based on a much better knowledge of the Celtic languages is the following: "May I, Windiorix for/at Cuamena defeat (alt. "summon to justice") the worthless woman, oh divine Deieda." (Alt. "Divine Deiada, may I, Windiorix, bring to justice/defeat (in court) the woman at Cuamena".) This is a superior, though still uncertain, translation in that it takes into account the nominal cases of the nouns: "Windiorix" (alt. "Windorix") - nominative masculine (subject), lit. "fair-headed" ("windo") "king" ("rix"); "Dewina Deieda" - nominative/vocative feminine "divine Deieda"